A newspaper and magazine cost 220 together the newspaper cost 140 less than the magazine, then the cost of magazine is 180 and the cost of newspaper is 40.
What is Equation?Two or more expressions with an Equal sign is called as Equation.
Given,
A newspaper and magazine cost 220
the newspaper cost is 140 less than the magazine
Let x be the cost of magazine
x-140 is the cost of newspaper
x+x-140=220
2x-140=220
Add 140 on both the sides
2x=220+140
2x=360
Divide both sides by 2
x=180
and x-140=180-140=40
Hence, the cost of magazine is 180 and the cost of newspaper is 40.
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Three erasers and five pencils cost $7.55. 6 erasers and 12 pencils cost $17.40. How much does 1 eraser cost? How much does 1 pencil cost?
Answer:
Step-by-step explanation:
erasers=e
pencils=p
3e+5p=7.55 ...(1)
6e+12p=17.40
divide by 2
3e+6p=8.70 ...(2)
(2)-(1) gives
p=8.70-7.55=1.15
from (1)
3e+5(1.15)=7.55
3e+5.75=7.55
3e=7.55-5.75
3e=1.80
e=1.80/3=0.60
cost of 1 eraser=$0.60
cost of 1 pencil =$1.15
.A bag contains 3 red checkers and 5 black checkers. A checker is selected, kept out of the bag, and then another checker is selected. What is the P(black, then red)?
Answer: 15 / 56
Step-by-step explanation:
Number of red checkers = 3
Number of black checkers = 5
Total number of checkers = 8
P(black, then red) = 5/8 × 3/7 = 15/56
We should note that the probability to pick a black checker first will be 5 out of 8. Then, there'll be 7 checkers left and the probability to pick a res checker will be 3/7. We then multiply the probabality of each together.
Which expression is equivalent to 3x+2
Answer:
(3 x X) + 2
Can be a possible way if you factor it out I think.
PLSS HELP ME ASAP I WILL EVEN GIVE U BRAINLYEST BUT PLAA HELP ME!!
Is the probability of red a simple event, complement of a
simple event, or neither?
A. complement of a simple event
B. nelther
C. simple event
Answer:
Complement of an Event: All outcomes that are NOT the event. So the Complement of an event is all the other outcomes (not the ones we want). And together the Event and its Complement make all possible outcomes.
100 points ! and I will mark me Brainliest
Answer:
it ARBY'S
Step-by-step explanation:
Answer:
I need 1 Brainliest before I can become Virtuoso
Step-by-step explanation:
HELPPP PLEASEE!!!DONT ANSWER IF YOU DONT KNOW!!
Answer:
-4
Step-by-step explanation:
Please help me simplify this expression!!
Answer:
[tex]w^{14}[/tex]
Step-by-step explanation:
[tex]\frac{1}{w^{11} } *w^{25}\\\\\\\frac{w^{25}}{w^{11}} \\\\w^{14}[/tex]
Match the verbal expression (term) with its algebraic expression (definition).
Match Term Definition
Some number increased by two A) y2
A variable decreased by two B) x − 2
Product of an unknown value and two C) b + 2
Quotient of some number and two D) 2z
An unknown value squared E) a ÷ 2
Answer:
match
Step-by-step explanation:
) Hiroki's goal is to collect $40 for a school fundraiser. He has already collected $26.50. Hiroki wants
to know how much more money he needs to collect.
that use the word correctly
ices, press the "Check Me" butto
6 POTE
.) Let m be the amount of money Hiroki still needs to collect.
Describe the situation with an equation.
this town made the first eleva
er and wrote a note on it
vater from the sink is leaking
color of copper coins
m
26.50
40
corper pipes for this project
De
Answer:
$13.50
Step-by-step explanation:
Subtract 40 from 26.50 to get the answer
A grocery store offers a service where customers can place an order and have their groceries delivered to their home for a additional fee. The equation y=1.5x can be used to find y, the total cost in dollars for x, the grocery cost In dollars. Ian has groceries delivered for a total cost of &125.90. He says his grocery cost must be $118.90. Is Ian correct? Explain your reasoning
Answer:
The answer is below
Step-by-step explanation:
A linear function graph can be represented by:
y = mx + b; where m is the slope and b is the y intercept, x is the independent variable and y is the dependent variable.
Given that y represents the total cost, x represent the grocery cost and the equation is given as:
y = 1.5x
The groceries where delivered for a total cost of $125.90, The grocery cot can be gotten by substituting y = 125.9 and calculating x. Hence:
125.9 = 1.5x
x = 125.9/1,5
x = $83.93
Therefore saying that the grocery cost must be $118.90 is incorrect.
A pendulum's first swing has an arc of 36 inches. As the pendulum swings back and forth, the arc length for each successive swing is 95% of the previous swing. If this pattern continues, at which swing of the pendulum will the length of the arc be less than 27 inches? A. 5th B. 6th C. 7th D. 9th
Answer:
7th
Step-by-step explanation:
Given :
Arc length on first swing = 36 inches
After successive swing, arc length decreases by 95%
Length on 2nd swing = 0.95 * 36 = 34.2
Length on 3rd swing = 0.95 * 34.2 = 32. 49
Length on 4th swing = 0.95 * 32.49 = 30.8085
Length on 5th swing = 0.95 * 30.8085 = 29.268075
Length on 6th swing = 0.95 * 29.268075 = 27.80467125
Length on 7th swing = 0.95 * 27.80467125 = 26.4144376875
26.4144376875 < 27
Hence, length falls below 27 on 7th swing
The Girl Scouts were selling cookies outside the local grocery store. Each box sold for $4.50.
Which equation could be used to complete the table?
Boxes
Price
1
2
3
4
10
15
18
4.50
9.00
13.50
18.00
45.00
67.50
?
A
y - 4.50 = 18
B
4.50y = 18
С
4.50 x 18 = y
18y = 4.50
I’m
Name an event that has a probability of 2/7
Answer:
2/7
Step-by-step explanation:
7 balls in a box 3 are red and 2 are yellow and 1 is white what is the probability of find a yellow ball?
Dax is buying hot chocolate for 5 people in his office (including himself). He pays for the 5 drinks and leaves a $2.00 tip.
If the total, with tip, is $18.25, how much is each cup of hot chocolate?
Enter your answer as a decimal, like this: 42.53
Answer: Each cup of hot chocolate is $3.25
Step-by-step explanation:
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James bought 12 cookies and ate 3 of them. He ate ____% of the cookies
Answer:
25%
Step-by-step explanation:
3/12=d/100
12×d=12d=3×100=300
12d÷12=d
300÷12=25
d=25
hope this helps
Function operations
Answer:
it manages and controls input output devices.
Consider the function represented by the graph. What is the domain of this function?
A. {x|x=>0}
B. {x|x<=8}
C. {x|0<=x<=8}
D. {x|x<=0x=>8}
Answer:
I think it is B but i'm not 100% sure.
Step-by-step explanation:
Allison invested $70,000 in an account paying an interest rate of 6.2%
compounded continuously. Assuming no deposits or withdrawals are made,
how long would it take, to the nearest year, for the value of the account to
reach $223,200?
Answer: 19
Step-by-step explanation: j trust me
If Triangle ABC~ triangle DEC, find the value of x and the scale factor from DEC to ABC
Answer:
see explanation
Step-by-step explanation:
The scale factor is the ratio of corresponding sides, image to original, that is
scale factor = [tex]\frac{AC}{DC}[/tex] = [tex]\frac{25}{20}[/tex] = [tex]\frac{5}{4}[/tex]
Then
[tex]\frac{AB}{DE}[/tex] = [tex]\frac{3x-2}{2x}[/tex] = [tex]\frac{5}{4}[/tex] ( cross- multiply )
4(3x - 2) = 10x
12x - 8 = 10x ( subtract 10x from both sides )
2x - 8 = 0 ( add 8 to both sides )
2x = 8 ( divide both sides by 2 )
x = 4
alex works for his father assembling clock motors he is paid a piecework rate of $8.50 per motor. this week he assembled 21 motors
Answer: $178.50
Step-by-step explanation:
If Alex is paid a piecework rate of $8.50 per motor, then;
Price per motor assembly = $8.50
By assembling 21 motors Alex gets,
1 motor = $8.50
21 motors = (21 * $8.50) / 1
= $178.50 / 1
= $178.50
By assembling 21 motors,
Alex gets $178.50
ANDWER CHOICES:
14cm
20cm
8cm
6cm
I NED HELP ASAP!!!!
During a hone run hitting contest Joe D hit 5 more home runs then ted w, ted w hit 8 more home runs then willie M. Altogether the three baseball players hit 105 hone runs, how many home runs did Ted W hit
Answer: 36
Step-by-step explanation:
Let Willie number of home run he represented by x.
Since ted w hit 8 more home runs than willie M, Ted home runs = x + 8
Since Joe D hit 5 more home runs than ted w, Joe D home run will be: = x + 8 + 5 = x + 13
Since they hit 105 home runs together, this will be represented as:
x + (x+8) + (x+13) = 105
x + x + 8 + x + 13 = 105
3x + 21 = 105
3x = 105 - 21
3x = 84
x = 84/3
x = 28
Number of Ted home run will be:
= x + 8
= 28 + 8
= 36
3 x q x 7 x q= ___. Can someone help?
[tex]21 {q}^{2} [/tex]
Step-by-step explanation:
[tex]3 \times 7 \times q \times q = \\ 21 \times q \times q = \\ 21q {}^{2} [/tex]
Eli runs 5 meters per second.
On a coordinate plane, a line goes through points (1, 5) and (2, 10)..
Use the graph to identify the independent and the dependent variable. Check all that apply.
The two variables are Eli and 5.
The two variables are meters and seconds.
Meters are graphed on the x-axis.
Meters are graphed on the y-axis.
Seconds is the independent variable.
Seconds is the dependent variable.
will some on really help me know?
Answer:
Its B, D, E
Step-by-step explanation:
Answer:
what the person above me said
Step-by-step explanation: =
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What scale factor was used in the dilation of ABC to FED?
Answer:
SF= 2
Step-by-step explanation:
Side AB had the legnth of 4
the congruent side of EF has a length of 8
therefore the original shape doubled in size
(4x2=8)
Drag tiles to describe each fraction Tiles may be used once, more than once, or not at all.
Answer:
1/3 is less than 2/3
7/9 is greater than 2/3
4/10 is less than 2/3
4/6 is equal to 2/3
[tex]x^{2} +30x-60000[/tex]
Step-by-step explanation:
hello , can you please tell us what the equation is asking you to do . this way we can help you properly
5. find M<C congruent triangles
Answer:
x = 18 / M<C = 114
Step-by-step explanation:
9x - 24 = (2x - 12) + (4x + 42)
9x - 24 = 6x + 30
+24 +24
9x = 6x + 54
-6x -6x
3x = 54
/3 /3
x = 18
C = (4x + 42) = 4(18) + 42 = 72 + 42 = 114
CAN SOME0NE PLEASE HELP MEEE ASAP!!
Answer:
[tex]x = 35.6[/tex]
Step-by-step explanation:
It is given that figure (HGFE) and figure (LKJI) are similar. Meaning that one must multiply a side of the figure (HGFE) by a number to get the corresponding side length from the figure (LKJI). To find this number, one must divide two corresponding sides.
[tex]\frac{KL}{FE}[/tex]
[tex]=\frac{55}{17}[/tex]
Now to find a missing side in figure (LKJI) one must multiply its corresponding side by ([tex]\frac{55}{17}[/tex]) in figure (HGFE) to find the length of the missing side.
[tex]EF * \frac{55}{17} = JI\\\\11 * \frac{55}{17} = JI\\\\\frac{605}{17} = JI[/tex]
[tex]x = \frac{605}{17}\\\\x=35.6[/tex]
Answer:
IJ ≈ 35.6
Step-by-step explanation:
Since the quadrilaterals are similar then the ratios of corresponding sides are equal, that is
[tex]\frac{IJ}{EF}[/tex] = [tex]\frac{KL}{GH}[/tex] , substitute values
[tex]\frac{IJ}{11}[/tex] = [tex]\frac{55}{17}[/tex] ( cross- multiply )
17 IJ = 605 ( divide both sides by 17 )
IJ ≈ 35.6 ( to the nearest tenth )
A caterer combines 4 quarts of pineapple juice 7 pines of milk and 4 cups of apple juice to make soothies how many cups can be filled with smoothies? Explain
Answer:
The answer is " 34 Cups".
Step-by-step explanation:
4 quarts of pineapple juice= 16 cups
7 pines of milk = 14 cups
4 cups apple juice is the same= 4 cups
Calculating the overall cups:
[tex]\to 16+14+4\\\\\to 34 \ cups[/tex]