Answer:
d
Step-by-step eddddxplanation:
dd
Gertrude paid $32.50 last month for 175 minutes of phone calls.
What is the unitary method?The unitary method is a method for solving a problem by the first value of a single unit and then finding the value by multiplying the single value. Unitary method is a technique by which we find the value of a single unit from the value of multiple devices and the value of more than one unit from the value of a single unit. It is a method that we use for most of the calculations in math.
We are given that cellphone plan has a fixed cost of $15, this means that regarding if we use it or not, you'll pay at least $15.
Also, added to those fixed costs, we pay $0.10 per minute for phone calls.
Acording to the information, the bill for last month was $32.50, first step is to remove the fixed charges to know how much was spent on phone calls:
$32.50-$15= $17.5
Now, cross multiplication so that can calculate how many minutes she talked to spend $17.5:
$0.10____1min
$17.50___xmin
x = 175
Hence She talked 175 minutes over the phone.
Learn more about the unitary method, please visit the link given below;
https://brainly.com/question/23423168
#SPJ3
HELP ME FAST PLEASE!!!!!
Answer:
the first one
Step-by-step explanation:
kkrkrkrkrkrk
Answer:
(-4,1)
Step-by-step explanation:
Nate and some friends go to the fair. Nate spends 1/2 of his money on rides. He then spends $12 on food. At the end of the day, Nate has $1 left. The equation is 1/2d-12=1. How much money did Nate bring to the fair
Answer:
i can help u if u let me know whta the equation means
Step-by-step explanation:
Answer:
25$
Step-by-step explanation:
(x ^ 3 - 13x ^ 2 + 40x + 18)/(x - 3) pls solve this
Step-by-step explanation:
tu lo que pusiste es falso
Combine like terms and write an equivalent expression
with the fewest number of terms.
3x + 5x – 1
Can someone help me?
Answer:
8 + -1 here you go hope this helps
what’s the solution
y = 8x – 2
y = 9x - 7
Answer:
The answer is (5, 38)
Step-by-step explanation:
Solve for the first variable in one of the equations, then substitute the result into the other equation.
~Hoped this helped~
Answer:
(5,38)
Step-by-step explanation:
if these two shapes are similar what is the measure of the missing length r?
r = ____ kilometers
Answer:
The answer is r=20
Step-by-step explanation:
[tex] \frac{81}{45} = \frac{36}{r} \\ r = \frac{36 \times 45}{81} = 20[/tex]
Translate this sentence into an equation. The product of Rita's savings and 9 is 153. Use the variable r to represent Rita's savings
One apple is worth three oranges. Which equation below could be used to represent this relationship?
A. y = x + 3
B. y = 3x
C. y = x/3
D. y= x - 3
Answer:
y=3x. .................
Select the correct answer
Answer:
f(-7)=12
Step-by-step explanation:
f(-7)= 5-(-7)
f(-7)=5+7
f(-7)=12
help!!!! pleaseee/.....
Answer:
I am not sure sowwy i hope you get it tho!!
Step-by-step explanation:
1_2_3_
is (3,4) a solution to the linear equation y=4x-8? Yes or No?
Answer:
Yes
Step-by-step explanation:
To find if the point (3,4) a solution to the linear equation y=4x-8 you need to substitute (3,4) into y=4x-8
(x,y)
(3,4)
x=3 and y=4
Subistute:
4=4(3)-8
4=12-8
4=4 which is correct so the answer is yes (3,4) is a solution for y=4x-8
Write an expression that shows the multiplication of a two digit number between 1 and 10 and another two digit number between 1 and 10 (different from the first), whose product is greater than 8, but less than 10.
Answer:
Step-by-step explanation:
From the given information:
Let the first expression that contains two digit number i.e. after multiplying them together their result is greater than 8 but less than 10, let those numbers be:
= 5.5 × 1.5
= 8.25
And another expression that is different from the first but exhibit the same properties to be:
= 3.5 × 2.5 (since both entities are two digit numbers)
= 8.75
What is the solution to the equation (2 – 2) + 22 – 4 = 9?
Answer:18
Step-by-step explanation:2−2+22−4=9
18≠9
Pls help!! ASAP!!!! I WILL GIVE YOU BRAINLIEST! I NEED A EXPLANATION FOR THIS QUESTION
Answer:
A system of equations are two or more equations that has to be valid at the same time. It means that the variables of one equation can be substitute in the other equation.
For example we have y=5x−8 and we can substitute this value of y in the other equation
4x+3y=33
4x+3(5x−8)=33 we can solve now for x
4x+15x−24=33
19x=33+24
19x=57
x=5719=3.
y can be obtained from the first equation
y=5x−8
y=5⋅3−8=15−8=7
Then x=3 and y=7.
Step-by-step explanation:
Answer:
x = 3
y = 7
Step-by-step explanation:
y = 5x - 8 ---------------(I)
4x + 3y = 33 ------------(II)
Substitute y = 5x - 8 in equation (II)
4x + 3 (5x - 8) = 33
4x + 3*5x - 8*3 = 33
4x + 15x - 24 = 33 {Combine like terms}
19x - 24 = 33 {Add 24 to both sides}
19x = 33 + 24
19x = 57 {Divide both sides by 19}
x = 57/19
x = 3
Substitute x = 3 in equation (I)
y = 5*3 - 8
y = 15 - 8
y = 7
find the area of the isocele triangle formed by the points of intersection of parabolas y=-x^2+9 and y=2x^2-3 and the origin
Answer:
[tex]10\ \text{sq. units}[/tex]
Step-by-step explanation:
The parabola's are
[tex]y=-x^2+9[/tex]
[tex]y=2x^2-3[/tex]
So
[tex]-x^2+9=2x^2-3\\\Rightarrow 12=3x^2\\\Rightarrow \\\Rightarrow x=\sqrt{\dfrac{12}{3}}\\\Rightarrow x=\pm 2[/tex]
[tex]y=-x^2+9=-(2)^2+9\\\Rightarrow y=5[/tex]
[tex]y=-(-2)^2+9=5[/tex]
So, the points at which the parabola's intersect each other is [tex](2,5)[/tex] and [tex](-2,5)[/tex]
The three points of the triangle are [tex](2,5)[/tex], [tex](-2,5)[/tex] and [tex](0,0)[/tex]
Area of a triangle is given by
[tex]A=\dfrac{1}{2}[x_1(y_2-y_3) + x_2(y_3-y_1) + x_3(y_1-y_2)]\\\Rightarrow A=\dfrac{1}{2}[2(5-0)+(-2)(0-5)+0(5-5)]\\\Rightarrow A=10\ \text{sq. units}[/tex]
Area of the triangle formed is [tex]10\ \text{sq. units}[/tex].
After a few mathletes join the team, the team is able to solve 40% more problems per session. Of the team can solve 42 problems per session now, how many problem were they able to solve before the new mathletes joined? (Please EXPLAIN how you got it ;)
Answer:
30 problemsStep-by-step explanation:
Let the number of the problems the team could solve before is x.
Then we have:
x + 40% = 421.4x = 42x = 42/1.4x = 30They were able to solve 30 problems before the new mathletes joined
Answer:
[tex]\tt{}x = 30 \\ [/tex]
Step-by-step explanation:
[tex]\tt{}x + 40\% = 42[/tex]
[tex]\tt{}1.4x = 42[/tex]
[tex]\tt{}x = \frac{42}{1.4} [/tex]
[tex]\tt{}x = 30[/tex]
[tex] \\ \\ \\ [/tex]
[tex] \huge \orange{\boxed{ \fcolorbox{red}{blue}{ \: CarryOnLearning \: }}}[/tex]
The equation of the line graphed below is _____. Do not include spaces in your answer.
Answer:
X=5
Step-by-step explanation:
Devon drove at the same speed for 4 hours. He drove a total of 120 miles,
How many miles did Devon drive in 1 hour?
Answer: 30
Step-by-step explanation:
Devon drove 30 miles in 1 hour because 120/4 is 30
The pentagon shown has 5 equal sides. The side lengths are represented by the expression 9k+4. What is the perimeter?
Answer:
5(9k+4)
45k+20
Step-by-step explanation:
You could add all the sides together or use distributive property and multiply the one side length by 5
How do i solve this math question?
d/2=4
I do not fully understand.
Urgentttt Workkk help
Answer:
3, 15
Step-by-step explanation:
1/10 of a unit also just means dividing by 10. 1/2 is just dividing by 2. Hope this helped!
Answer:
1/10= 3
1/2=15
Step-by-step explanation:
If the whole unit is 30, then one tenth of it would be three (3x10=30) and one half of it would be 15 (2x15=30)
Simplify:
20x + 27y + 38y + 29x
Answer:
49x +65y
Step-by-step explanation:
add like terms
PLEASE HELP ILL MAKE YOU BRAINLEST
A small particle has a mass of approximately 0.00000043 grams. How would this number be expressed in scientific notation? Select one: O A. 4.30 x 10-7 O B. 4.30 x 10-6 O C. 4.30 x 107 O D. 4.30 X 106
Answer:
1. 4.3x10^-7
2. the picture is cut off
Solve the system of equations.
-6x+6y=6
-6x+3y=-12
Answer:
x=5 and y=6
Step-by-step explanation:
Answer:
x=5, y=6
Step-by-step explanation:
-6x + 6y = 6
If we divide this by 6 (which we can do because it is an equation), we can simplify this by a lot.
-6x + 6y = 6
-x + y = 1 <-- NEW EQUATION #1
We can also simplify -6x + 3y = -12 by dividing everything by 3.
-6x + 3y = -12
-2x + y = -4 <-- NEW EQUATION #2
Substitution is fairly easy for this problem.
Isolate the variable
-x + y = 1
y = x + 1
Now substitute (x+1) for where you see y in the second equation.
-2x + (x + 1) = -4
-x + 1 = -4
x = 5
Now substitute 5 for x.
-(5) + y = 1
y = 6
Strawberries cost $3.60 per pound. You buy a bag that costs $7.20. How many pounds of strawberries are in the bag?
3.60 per pound
7.20 divided by 3.60 = 2
there are two pounds of strawberries in the bag!
6 + -4 =
-8 - (-10) =
-7 + 3 =
Step-by-step explanation:
6+ -4=2
-8-(10) = 2
-7 + 3= - 4
Solve the equation 0.5x = 16 for x using the division property of equality.
x =
Answer:
32
Step-by-step explanation:
got it right on edge
PLEASE HELP!!! WILL MARK BRAINLIEST!!! CAN you help there is a website it has the answers appealy but I cannot seem to find them in it.
OFFICER RANK INSIGNIA:
what is similar about officer rank insignia within each grade?
what is different?
ENLISTED RANK INSIGNIA:
describe two interesting things about any of the E-1 through E-7 ranks.
List the title of the highest enlisted grade of another JROTC parent military service?
what is common characteristics for the enlisted grade of E-1?
Answer:
The difference is While pay grades are administrative classifications used primarily to standardize compensation across the military services, ranks indicate a level of responsibility (for personnel, equipment, and mission) which grows with each increase in rank.
Step-by-step explanation:
There similar because Pay grades E-1 through E-3 generally indicate basic training, advanced training or entry-level work. For the Army and Marines, E-1 corresponds to the rank of private
I hoped this helped!
Find the sum. Write the answer in its simplest form. -7.1+(-5.63)
Answer:
-12.73
Step-by-step explanation:
since you are adding a negative, it is the same as subtracting. subtract -7.1 from -5.63 to get -12.73. hope this helps
what is the meaning of altitude?
Answer:
1.
a settled way of thinking or feeling about something
Answer:
Altitude or height is a distance measurement, usually in the vertical or "up" direction, between a reference datum and a point or object. The exact definition and reference datum varies according to the context.
Step-by-step explanation: