3 years ago

Please can someone help me with INTERIM CHECKPOINT Math problems

Mathematics

1 answer:

gogolik [260]3 years ago

8 0

The answer will be -32

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At the Football game they expect that for every 4 people that attend 3 hot dogs will be sold. What is the equation

Nata [24]

Answer:

If $p$ is people and $h$ is hot dogs, the equation is $3h=4p$ .

5 0

3 years ago

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Which is the best description of the equivalency of the two expressions? Expression 1 Expression 2 5 x squared minus 2 x minus 4

lina2011 [118]

Answer:

The correct option is (D).

Step-by-step explanation:

The two expressions are:

$\text{Exp}_{1}=5x^{2}-2x-4+6x+3\\\\\text{Exp}_{2}=6x^{2}-6x+6-x^{2}+10x-7$

On simplifying both the expressions we get:

$\text{Exp}_{1}=5x^{2}+4x-1\\\\\text{Exp}_{2}=5x^{2}+4x-1$

Compute the value of both expressions for <em>x</em> = 2 as follows:

$\text{Exp}_{1}=5(2)^{2}+4(2)-1=27\\\\\text{Exp}_{2}=5(2)^{2}+4(2)-1=27$

The value of both expressions are same for <em>x</em> = 2.

Thus, the correct option is:

"They are equivalent because when x = 2, the two expressions have the same value."

6 0

2 years ago

Diego is solving the inequality 100 − 3x ≥ -50. He solves the equation 100 − 3x = -50 and gets x = 50. What is the solution to t

ZanzabumX [31]

Answer:

x≤50

Step-by-step explanation:

100-3x≥-50

subtracting 100 at both side on inequality

-100+100-3x≥--50-100

-3x≥-150

Dividing both sides by 3

-3x/3≥-150/3

-x≥--50

Adding 50 on both sides

-x+50≥-50+50

-x+50≥0

Adding x on both sides

-x+x+50≥0+x

50≥x

so,

x≤50

7 0

3 years ago

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Which answer represents the series in sigma notation? −3+(−1)+1+3+5 A:∑j=15(2j−5)

insens350 [35]

Answer:

A:∑j=15(2j−5)

Step-by-step explanation:

a = -3

d = -1 - (-3) = -1 + 3 = 2

j-th term: a + (j-1)d

-3 + (j - 1)(2)

-3 + 2j - 2

2j - 5

8 0

3 years ago

The volume of a drop of a certain liquid is 0.000047 liters. Write the volume of the drop of liquid in scientific notation

LuckyWell [14K]

Answer:

4.7*10^-5

Step-by-step explanation:

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3 years ago