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andrey2020 [161]

3 years ago

13

I NEED THIS DONE NOW ASAP I WILL MARK YOU THE BRAINLIEST NO LINKS!!!

1 answer:

Leto [7]3 years ago

3 0

Answer: second one

Step-by-step explanation:

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7 grade boys26,girls34

Tasya [4]

26/30=13/15
34/30 =17/15

8 0

3 years ago

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X2+xy=20, y2+xy=30, Solve for xy.

sashaice [31]

If you substitute 2 for x, and 3 for y, than that gives you half the value of the real answer. So 2×3 =6, what is 6 half of? 12

6 0

3 years ago

Which polynomial is written in standard form for the polynomial 3x^4+x^6-10+5x?

erik [133]

Answer is <span>C. X^6+3x^4+5x-10

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</span>

7 0

3 years ago

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Compare the ratios 3:8 and 1:2 1. write ratios as fractions. 3:8 and 1:2 2. find a common denominator. 2 is a faction of 8, so t

xenn [34]

Answer:

$1:2 > 3:8$

Step-by-step explanation:

Given

$Ratio_1 = 3:8$

$Ratio_2 = 1:2$

Required

Compare both ratios

$Ratio_1 = 3:8$

$Ratio_2 = 1:2$

Multiply ratio 2 by 4

$Ratio_1 = 3:8$

$Ratio_2 = 1 * 4:2 * 4$

This gives:

$Ratio_1 = 3:8$

$Ratio_2 = 4:8$

Write both ratios as fractions

$Ratio_1 = \frac{3}{8}$

$Ratio_2 = \frac{4}{8}$

Get decimal equivalent:

$Ratio_1 = 0.375$

$Ratio_2 = 0.5$

Comparing both, we have that

$Ratio_2 > Ratio_1$

$0.5 > 0.375$

Conclusively;

$1:2 > 3:8$

6 0

3 years ago

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Please help urgent <br><br> 168 ≥7(-8x+8)

zhuklara [117]

Answer:

$\boxed {x \geq -2}$

Step-by-step explanation:

Solve for the following inequality:

$168 \geq 7(-8x + 8)$

-Divide both sides by $7$ :

$\frac{168}{7} \geq -8x + 8$

$24 \geq -8x + 8$

-Switch sides:

$24 \geq -8x + 8$

$-8x + 8 \leq 24$

-Subtract $8$ to both sides:

$-8x + 8 - 8 \leq 24 - 8$

$-8x \leq 16$

-When you are dividing an integer by a <u>negative</u> integer, then the inequality sign changes. So, divide both sides by $-8$ :

$\frac{-8x}{-8} \leq \frac{16}{-8}$

$\boxed {x \geq -2}$

4 0

3 years ago