4 years ago

Please help, I can't get it

Mathematics

1 answer:

algol [13]4 years ago

5 0

X+5 /3
hope this helps!

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Find <br><img src="https://tex.z-dn.net/?f=%28%20%7B4x%7D%5E%7B2%7D%20%20%2B%203x%29%20%2B%20%28%20%7B7x%7D%5E%7B2%7D%20%20-%205

marishachu [46]

Answer:

$11x^2-2x-6$

Step-by-step explanation:

$(4x^2+3x)+(7x^2-5x-6)= \\\\(4x^2+7x^2)+(3x-5x)-6= \\\\11x^2-2x-6$

Hope this helps!

4 0

3 years ago

Molly is saving money to buy a new bike that costs $189. He has save $99 so far. He plans on saving $10 each week. Write and sol

belka [17]

Answer: Molly will have to save $10 each week for 9 weeks to get $189.

Step-by-step explanation:

Start at $99, count $10 every week until you get $189. Your answer is 9 weeks.

3 0

3 years ago

Given f(x)=5x-4, solve for x when f(x)=1

Sergio [31]

Answer:

X=1

Step-by-step explanation:

1=5x-4

5=5x

5/5=5/5x

X=1

8 0

3 years ago

117 divided by 13 in equal groups

Alexxandr [17]

Answer:

Step-by-step explanation:

1x117 = 117

3x39 = 117

9x13 = 117

6 0

3 years ago

How many solutions does this equation have?<br><br> 8n = 10 + 10n

Andre45 [30]

Answer:

Step-by-step explanation:

-10n+8n=10

-2n=10

n=-5

So, one solution

5 0

3 years ago