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Orlov [11]
3 years ago
9

William bought pencil boxes for his art class. Each box costs $3.50. He gave $30 to the cashier and got $5.50 as change. How man

y pencil boxes did he buy?
A. 3

B. 4

C. 7

D. 10


Help It's for benchmark testing so I need it now!! D:
Mathematics
1 answer:
mr_godi [17]3 years ago
8 0

Answer:

D

Step-by-step explanation:

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On a particular map of Denmark, 1 inch represents 12 miles. What does 2 in a half inches on the map represent? Write a number se
Rufina [12.5K]

Answer:

30

Step-by-step explanation:

1 inch / 12 miles = 2.5 inch / x        Cross multiply

1*x = 12 * 2.5                                    Combine

x = 30 miles

6 0
3 years ago
Explain why it is important to know if a time is in the am or in pm when figuring out how much time has lapsed
Oksi-84 [34.3K]
Because time goes from am to pm 
8 0
3 years ago
Sketch the region enclosed by the given curves. Decide whether to integrate with respect to x or y. Then find the area of the re
mina [271]

Answer:

Step-by-step explanation:

integrate with respect to x

Area is symmetric so will be twice the integral from zero to 1

( I cannot seem to figure out how to make the lower limit negative in this editor)

A = 2\int\limits^1_0 {(x^2 + 3) - 4x^2} \, dx)

A = 2\int\limits^1_0 {-3x^2 + 3} \, dx

A = 6\int\limits^1_0 {-x^2 + 1} \, dx

A = 6(-⅓x³ + x)\left \| {{x=1} \atop {x=0}} \right.

A = 6((-⅓(1)³ + (1)) - (-⅓(0)³ + (0)))

A = 6(⅔)

A = 4 units²

7 0
2 years ago
graph the system of inequlities {-2x+3y>3 and 4x-3y<15. a solve each inequality for y show your work. graph each inequalit
Stels [109]

Answer:

See explanation

Step-by-step explanation:

1. Solve the system of two inequalities for y:

\left\{\begin{array}{l}-2x+3y>3\\ \\4x-3y3+2x\\ \\-3y1+\dfrac{2}{3}x\\ \\y>-5+\dfrac{4}{3}x\end{array}\right.

2. To graph both inequalities, first draw dotted lines -2x+3y=3 and 4x-3y=15 (dotted because the signs of inequalities are both without notion "or equal to"). Then choose appropriate part, substituting the coordinates of the origin:

-2\cdot 0+3\cdot 0=0>3\ - \ \text{false}\\ \\4\cdot 0-3\cdot 0=0

So, the origin belongs to the top part of the second inequality and to the bottom part of the first inequality. The intersection of these two regions is the solution set to the system of two inequalities (see attached diagram).

7 0
3 years ago
Help me please, the answer choices are on the pic
Sati [7]

Answer:

104

Step-by-step explanation:

Let's say that the numbers are x and y. So, we know that....

x+y=186

y-x=22

Now we can use the substitution method to find the numbers. y-x=22 turns into y=22+x. And now we can substitute to the second equation into the first equation.  

x+22+x=186

2x=164

x=82

y=22+82

y=104

Our numbers are 82 and 104 and the larger integer is 104, so that's the answer.

4 0
3 years ago
Read 2 more answers
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