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My name is Ann [436]

3 years ago

14

Richard and Teo have a combined age of 31. Richard is 4 years older than twice Teo's age. Write a system of equations. How old a

re Richard and Teo?
I need to write an equation for this, please help

1 answer:

sweet [91]3 years ago

4 0

Answer:

richard is 22 and teo is 9

Step-by-step explanation:

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You need to split it in half then multply then add

garri49 [273]

12x23=276
15x5=75
276+75=351
Your answer is 351 square feet

7 0

3 years ago

What does X equal. -356 = -77 -9x<br> This is grade 7 math.

LuckyWell [14K]

Answer:

<h2> <em><u>x = 2.82 (approx.)</u></em></h2>

Step-by-step explanation:

<em><u>Given</u></em><em><u>, </u></em>

- 356 = -77 - 99x

=> -77 - 99x = -356

=> -99x = -356 + 77

=> -99x = -279

$= > x = \frac{ - 279}{ - 99}$

=> x = 2.8181....

=> <em><u>x = 2.82 (approx.) (Ans)</u></em>

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3 years ago

nydimaria [60]

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5 0

3 years ago

Factor the polynomial by its greatest common monomial factor

givi [52]

Answer:

$\large\boxed{9b^8+24b^3=(3b^3)(3b^5+8)}$

Step-by-step explanation:

$9b^8=3\cdot3\cdot b^{3+5}=\bold{3}\cdot3\cdot\bold{b^3}\cdot b^5=\bold{(3b^3)}(3b^5)\\\\24b^3=\bold3\cdot8\cdot\bold{b^3}=\bold{(3b^3)}(8)\\\\9b^8+24b^3=\bold{(3b^3)}(3b^5)+\bold{(3b^3)}(8)=\bold{(3b^3)}(3b^5+8)\\\\\text{Used}\\\\a^n\cdot a^m=a^{n+m}\\\\\text{distributive property:}\ a(b+c)=ab+ac$

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3 years ago

PLS IL GIVE U ALL MY POINTS IF ANSWERED

Advocard [28]

Answer:

The answer is D

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2 years ago