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3 years ago

What is -6a + a + 28a

Mathematics

2 answers:

densk [106]3 years ago

7 0

These are all like terms, meaning that they involve the same literal expression (in this case, "a").

So, we can factor a out of all the terms, and we have

$-6a+a+28a=a(-6+1+28) = 23a$

Alisiya [41]3 years ago

4 0

$-6a+a+28a=-6a+29a=23a$

Hope this helps.

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kim has 1/2 cup of almonds. she uses 1/8 cup of almonds to make a batch of pancakes. how many bathces of panckes can kim make iw

butalik [34]

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3 years ago

What is the value of X

alexdok [17]

Answer:

$x=12$

Step-by-step explanation:

We have been given a graph of similar triangles. We are asked to find the value of x.

Since we know that corresponding sides of similar triangles are always in same proportion, so we will use proportions to find the length of x.

$\frac{3}{x+3}=\frac{4}{16+4}$

$\frac{3}{x+3}=\frac{4}{20}$

Upon cross multiplying our equation we will get,

$4*(x+3)=3(20)$

Upon distributing 4 we will get,

$4x+12=60$

Let us subtract 12 from both sides of our equation.

$4x+12-12=60-12$

$4x=48$

Upon dividing both sides of our equation by 4 we will get,

$\frac{4x}{4}=\frac{48}{4}$

$x=12$

Therefore, the value of x will be 12.

4 0

3 years ago

Read 2 more answers

-4 (2x + 13) + 3x = 80<br> How do you solve this out and get the answer

shusha [124]

Hey :)

x= -12

Use the distributive property to multiply −4 by 2x+13

−8x−52=3x+80
Subtract 3x from both sides
−8x−52−3x=80

Combine −8x and −3x to get −11x
−11x−52=80

Add 52 to both sides
−11x=80+52

Add 80 and 52 to get 132
−11x=132

Divide both sides by −11
x= 132/-11

Divide 132 by −11 to get −12
x=−12

Hope this helps :)

6 0

3 years ago

What does it mean to evaluate an expression in 5th grade

MrRa [10]

Answer:

Usually it means to solve it. Sometimes they give you values to substitute in for variables (letters) in the math sentence/equation/expression.

Does that make sense?

Step-by-step explanation:

3 0

3 years ago

I need help is anyone is out there and knows how to do this help.<br> HELP ASAP

Anna [14]

Answer:

Sorry i have no idea hahha

Step-by-step explanation:

Good luck

4 0

4 years ago