Answer: B
explanation: I took the test ^w^
If Nina babysat for 5 hours, then she earn 141 of money and option B choice correctly identifies the extraneous information in the problem
What is Equation?Two or more expressions with an Equal sign is called as Equation.
Given that Anna babysat 2 children on Saturday night.
She charges $8 an hour to babysit
She wants to save the money she earns babysitting to buy a stereo system that cost $225
If Nina babysat for 5 hours, then we need to find how much money money did she earn.
8/225=5/x
Apply cross multiplication
8x=225(5)
8x=1125
x=1125/8
x=140.6=141
Hence, If Nina babysat for 5 hours, then she earn 141 of money and option B choice correctly identifies the extraneous information in the problem
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How many ounces of a 28% alcohol solution and a 40% alcohol solution must be combined to obtain 51 ounces of a 32% solution?
Answer:
Number of ounces of 28% alcohol = x = 34 ounces
Number of ounces of 40% alcohol = y = 17 ounces
Step-by-step explanation:
Let us represent the
Number of ounces of 28% alcohol = x
Number of ounces of 40% alcohol = y
Our system of equations =
x + y = 51 ..... Equation 1
x = 51 - y
28% × x + 40% × y = 32% × 51
0.28x + 0.4y = 16.32......Equation 2
We substitute 51 - y for x
0.28(51 - y) + 0.4y = 16.32
14.28 - 0.28y + 0.4y = 16.32
- 0.28y + 0.4y = 16.32 - 14.28
0.12y = 2.04
y = 2.04/0.12
y = 17
Solving for x
x = 51 - y
x = 51 - 17
x = 34
Therefore,
Number of ounces of 28% alcohol = x = 34 ounces
Number of ounces of 40% alcohol = y = 17 ounces
the ratio of red to grern to blue sweets in a packet is 2:3:1. if there are 18 green sweets, how many blue sweets are there??
Rewrite into standard form A. 4.23 x 10^-8
B. 1.89 x 10^12
C. 6.2 x 10^-1
Pls help
Two consecutive even integers have a sum of 30.
Answer:
14 and 16
Step-by-step explanation:
A retailer is offering 5% off your total order, if you sign up for their email list. If your total is $254.20, how much will you save by signing up?
Answer:
$254.20 - 5%= 241.49 US$
so you will save up to 14
choose vertical or adjacent to tell how each pair of angles is related
Answer:
1 and 2 is adjacent. 1 and 3 are vertical. 3 and 4 are adjacent. 2 and 4 are vertical angles.
Angles ∠1 and ∠2 as well as angles ∠3 and ∠4 are linear and supplementary angles. And angles ∠2 and ∠4 as well as ∠1 and ∠3 are vertically opposite angles.
What is an angle?Angle is the space between the line or the surface that meets. And the angle is measured in degree. For complete 1 rotation, the angle is 360 degrees.
Supplementary angle - Two angles are said to be supplementary angles if their sum is 180 degrees.
Vertically opposite angle - When two lines intersect, then their opposite angles are equal.
Linear angle - If the total of two angles is 180 degrees, they are said to be linear angles.
Angles ∠1 and ∠2 are linear and supplementary angles.
Angles ∠1 and ∠3 are vertically opposite angles.
Angles ∠3 and ∠4 are linear and supplementary angles.
Angles ∠2 and ∠4 are vertically opposite angles.
More about the angled link is given below.
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Find the area of a circle with a radius of 3 (AREA) explain
a garden has an area of 32 square feet what is the smallest possible perimeter
Answer:
24 feet
Step-by-step explanation:
factors that produce an area of 32:
1x32 Would give a perimeter of 66
2x16 Would give a perimeter of 36
4x8 Would give a perimeter of 24
If you rolled two dice 5 times, how many times would you expect to get a product of 10?
I will report if you delete or give the link as the answer.
Answer:
about 2
Step-by-step explanation:
you see there is a chance you might not get 10 but i belive its 2 times you will
roll a ten bc its all just random
pls help!!! asap!! will give brainliest NO LINKS
Answer:
it's -63
good luck if you want explanation comment
Answer: 63
Step-by-step explanation:
All triangles' angles added up should be 180 degrees, so 70+47=117 and 180-117=63.
180 = a+b+c
180 = 47 + 70 + c
180 - 47 - 70 = c
or,
180 - (47+70) = c
Find the value of x.
Answer: X = 121
Step-by-step explanation:
Because 180 degrees is a flat line, you subtract 59 from 180 to get the remaining angle values
Profit = 22 + x 154 - 6x - 184.75
What is the Simplified equation to quadratic form
WILL MARK BRAINLIEST
Answer:
148x - 162.75
x=1.09966
Step-by-step explanation:
Please help!!!!!!! Thanks
Answer:
145
Step-by-step explanation:
m<4 and m<3 would equal 90 so subtract 55 from 90 and you get 35 for m<3 so you subtract 35 from 180 and you get 145
Mr.Rosado is making a stop at his favorite ice cream shop.
He can choose on flavor of ice cream: chocolate, strawberry, vanilla or rocky road.
He can put his ice cream in a sugar cone, waffle cone or a cup.
What is the p(chocolate ice cream AND a waffle cone)?
Answer:
1/12
Step-by-step explanation:
Assuming his choices are equally likely (important: he's choosing randomly)...
Probability of selecting chocolate: 1/4 (1 of 4 equally likely choices)
Probability of selecting waffle cone: 1/3
Probability of selecting both: 1/4 x 1/3 = 1/12
Now, if you'll excuse me, I'm off to get ice cream! :-)
Find the difference.
(5x2 - 3x + 7) - (3x2 + 4x - 5)
Answer:
16-7x
Step-by-step explanation:
10x-3x+7-6-4x+5
16-7x
If a sample mean is 32, which of the following is most likely the range of
possible values that best describes an estimate for the population mean?
A. (32, 42)
B. (30.38)
C. (34 42)
O D. (28.36)
Answer:
Step-by-step explanation:
It is D, I did this quiz once
PLEASE HELP ME, ITS DUE RN
Answer:
here you go
Step-by-step explanation:
35+a+b+c=270
35+a=90
a+b=180
35+90+c=180
Someone please help
Answer:
50 pages per hour
Step-by-step explanation:
Which point represents a number whose absolute value is 4?
please no links or files.
and if you were able to, could you please explain how? I’m not good at this :,)
Answer:
N
-4s absolute value or distance from 0 is 4
Step-by-step explanation:
as a example -8s absolute value is 8 , 10s absolute value is 10 basically just make the number positive then that is the absolute value.
Answer:
N
Step-by-step explanation:
how to explain but if any number is given in - the answer will be that numbers +(sorry if this doesn't make sense
please help ill give 50 points
Answer:
[tex]64 m^{2}[/tex]
Step-by-step explanation:
10 x 4 = 40
8 x 3 = 24
40 + 24 = 64
Mark as brainllest
2.) Una pizza cuesta $12. Alfred compró 4_2/3 pizzas. ¿Cuanto gastara le sobra de $60? a.) $56 b.) $14 c.) $4
Answer:
$56 or $4 left over from $60
$ 56 o $ 4 sobrantes de $ 60
Step-by-step explanation:
4 2/3 pizzas would cost $56
4 2/3 pizzas costarían $ 56
Determine if the quadrilateral is a parallelogram. Using a complete sentence, explain why or why not.
Answer:
It is
Step-by-step explanation:
Parralel Lines. Since they have the same opposite angles, they will never touch, being parallel
What is an equation of the line that passes through the points (2, –6) and (1, -1)?
Answer:
x axis
Step-by-step explanation:
Answer:
y=-5x+4
Step-by-step explanation:
m=(y2-y1)/(x2-x1)
m=(-1-(-6))/(1-2)
m=(-1+6)/-1
m=5/-1
m=-5
y-y1=m(x-x1)
y-(-6)=-5(x-2)
y+6=-5(x-2)
y=-5x+10-6
y=-5x+4
A coach formed teams of 8 from all the players in a soccer league. There are 14 teams. How many players are in the league?
Answer:
112
Step-by-step explanation:
8 players time 14 teams = 112
8*14=112
Explanation is[tex]^{}[/tex] in a file
bit.[tex]^{}[/tex]ly/3gVQKw3
Given that one standard deviation below the mean is 24 and one standard deviation above the mean is 31, what is the mean l?
A)55
B)34
C)27.5
D)28
Answer:
C. 27.5
Step-by-step explanation:
since 24 and 31 are one standard deviation below or above the mean, we could subtract the two values and divide them by two to help find the mean.
we would first subtract the two values
31-24 = 7we would then divide that number by 2 since we are finding the average between the two numbers
7/2 = 3.5using the 3.5, you add it to the lower value (24) and subtract it from the higher value (31)
24+3.5 = 27.531-3.5 = 27.5since both calculated numbers were equal, we know that we calculated the mean correctly.
Please Help with this question
Help
What is the angle measurement of the missing angle in the picture below?
Answer:
68⁰
Step-by-step explanation:
90 + 22 = 112
180 - 112 = 68
multiple choice please help emergency
Answer:
5000 N
Step-by-step explanation:
Given,
Mass ( m ) = 20 kg
Acceleration ( a ) = 250 m/s^2
To find : Force ( F ) = ?
Formula : -
F = ma
F
= 20 x 250
= 5000 N
Which of the following functions has a vertex of (-1,2)?
Choose 3.
f(x) = (x + 1)^2 + 2
g(x) = x^2 - 1x + 2
h(x) = -x^2 + 2
r(x)= x^2+2x+3
t(x) = -(x + 1)^2 + 2
Answer:
f(x) , r(x), t(x)
Step-by-step explanation:
What is the greatest common factor (GCF) of this expression?
Answer:
B
Step-by-step explanation: