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4 years ago

Can you solve -6x+7=-49+2x step by step

Mathematics

1 answer:

zvonat [6]4 years ago

4 0

Step-by-step explanation:

$- 6x + 7 = - 49 + 2x \\ - 6x - 2x = - 49 - 7 \\ - 8x = - 56 \\ x = \frac{ - 56}{ - 8} \\ x = 7$

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Find the sum. (-3p^3+5p^3-2p)+(-p^3-8p^2-15p)

inysia [295]

The sum is $p^3 -8p^2-17p$

Solution:

Given that we have to find the sum

Given expression is:

$(-3p^3+5p^3-2p) + (-p^3-8p^2-15p)$

We have to add both the expressions

Addition of two polynomials involves combining like terms present in the two polynomials

Like terms are the terms having same variable and same exponent

From given expression,

$(-3p^3+5p^3-2p) + (-p^3-8p^2-15p)$

Remove the parenthesis and add

$-3p^3+5p^3-2p-p^3-8p^2-15p$

Combine the like terms

$-3p^3+5p^3-p^3-8p^2-2p-15p$

Add the like terms

$p^3 -8p^2-17p$

Thus the sum is $p^3 -8p^2-17p$

4 0

4 years ago

Mark charged a battery. Each minute, the percentage of the battery’s capacity that was charged increased by 2.5 percent. After 1

Sonja [21]

Answer: 19%

Step-by-step explanation:

You take 17 times 2.5 which you get 42.5 which is so you know how much the battery has charged. You then take the 61.5 minus 42.5 and which is 19

7 0

3 years ago

The radius of a circle is 5 inches find the exact area of the circle

jeyben [28]

I think the answer is 78.53982
Hope it helps!

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1 year ago

Determine whether each of the following are functions

Alja [10]

Answer:

xxc

Step-by-step explanation:

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3 years ago

The total price of a shirt and a cap is $11. If the price of the shirt was doubled and the price of the cap was three times its

Oliga [24]

Answer:

shirt= $8

cap=$3

Step-by-step explanation:

rearrange one of the equations

y=11-x

then plug into the other equation

2x+3(11-x)=25

solve

2x+33-3x=25

-x+33=25

subtract 33 from both sides

-x=-8

divide by -1

x=8

the put that answer into original equation

8+y=11

subtract 8 from both sides

y=3

8 0

4 years ago