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photoshop1234 [79]
2 years ago
13

Hallie has $24 to spend on pencils. If each pencil costs $2 and she had $10 left, how many pencils did she buy? Written as a equ

ation
Mathematics
2 answers:
Vera_Pavlovna [14]2 years ago
7 0

Answer:

Amount of money spent on the pencils

= $24-$10

= $14

No. of pencils bought

= 24÷2 --> written as an equation

= 12

timama [110]2 years ago
5 0

Answer:

Equation: 24 - 2p = 10

Pencils she bought: 7 pencils

Explanation:

Let number of pencils be p

initial money - cost of pens = final money

24 - 2p = 10

Solve this to find pencils she bought:

24 - 2p = 10

-2p = 10 -24

-2p = -14

p = 7

So she bought 7 pencils in total.

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Simplify the following polynomial expression. (5x^4-9x^3+7x-1)+(-8x^4+4x^2-3x+2)-(-4x^3+5x-1)(2x-7)
Anton [14]

Answer:

5x^4 - 37x^3 - 6x^2 + 41x - 6

Step-by-step explanation:

5 0
3 years ago
What is the value of x in the equation 2x + 1/2x + 2(1+x) = 29?
erica [24]

Answer:

<h2>x = 6</h2>

Step-by-step explanation:

2x  +  \frac{1}{2} x + 2(1 + x) = 29

Multiply through by 2

That's

4x + x + 4(1 + x) = 58

<u>Expand</u>

That's

5x + 4 + 4x = 58

9x = 58 - 4

9x = 54

Divide both sides by 9

That's

\frac{9x}{9}  =  \frac{54}{9}

We have the final answer as

<h3>x = 6</h3>

Hope this helps you

5 0
3 years ago
A box is x to inches high,(2x+3)inches wide, and (2x+5) of inches long. In terms of x, what is the volume (v) of the box?
Advocard [28]

Answer:

The volume of the box is V=(4x^3+16x^2+15x)\ in^3

Step-by-step explanation:

we know that

The volume of the box is equal to

V=LWH

where

L is the length of the box in inches

W is the width of the box in inches

H is the height of the box in inches

we have

L=(2x+5)\ in\\W=(2x+3)\ in\\H=x\ in

substitute in the formula

V=(2x+5)(2x+3)x

V=(4x^2+6x+10x+15)(x)

V=(4x^2+16x+15)(x)

V=(4x^3+16x^2+15x)\ in^3

6 0
3 years ago
Osvoldo has a goal of getting at least 30%, percent of his grams of carbohydrates each day from whole grains. Today, he ate 220
Phantasy [73]
Yeah because he was at least 80% and when you add the grain and carbon that was total. Then divide the carbon. It will be 80%
8 0
3 years ago
The coaches of the East Side Sports Club want to buy lunch for each of the 209 members. What is the total cost of the lunch if t
Zarrin [17]

Answer:

$3553

Step-by-step explanation:

10+3+2+2=17

209x17=$3553

7 0
3 years ago
Read 2 more answers
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