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3 years ago

Someone who's good at math please help me!!!

Mathematics

1 answer:

timurjin [86]3 years ago

8 0

#1.
Here what you do is cross multiply.
$\frac{8x}{13x}$
#2.
Same as #1, just cross multiply.
$\frac{9x}{12}$

You get the gist?

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A jacket costs 50$ at the store Evan has a coupon for 15$ off.Max pays only 0.6 of the price because his father works at the sto

Arturiano [62]

Answer:

Step-by-step explanation:

The original price of the jacket at the store is $50.

Evan has a coupon for 15$ off. This means that the amount that Evans will pay is the original price - 15% of the original price. It becomes

50 - (15/100 × 50) = 50 - 7.5 = $42.5

Max pays only 0.6 of the price because his father works at the store.

This means that the amount that Max will pay is 0.6 × the original price. It becomes

0.6 × 50 = $30

Max will pay the least amount because his amount is smaller

6 0

4 years ago

The formula for the perimeter of a rectangle can be expressed in more than one way. One way is P=2(l + w). Discuss how you could

ruslelena [56]

First you would divide by 2 in both sides
P/2 = l + w

Then you would subtract w from both sides
P/2 - w = l

This is the easiest method do isolate l

You can also distribute the 2 to ( l + w) first
P= 2l + 2w

Then subtract 2w from both sides
P - 2w = 2l

Then you would divide by 2
(P - 2w) / 2 = l
P/2 - w = l

5 0

3 years ago

6b 4r represents the total cost of the rice and beans Gabriel bought. If he returns 2 bags of beans and 1 bag of rice, the expre

Julli [10]

The total cost of rice and beans bought by Gabriel is 6b + 4r.

The simplified expression of the final cost is 4b + 3r.

<h3>What is simplification?</h3>

Simplification can be defined as a process of replacing a mathematical expression by the cancellation of common factors, regrouping of terms in the same variable to get the more simple form of the given expression.

Given that

6b + 4r represents the total cost of the rice and beans Gabriel bought.

He returns 2 bags of beans and 1 bag of rice.

This can be written as,

$\rm 2b+1r$

Then, the total number of bags of rice and beans is given as,

$\rm (6b+4r)- (\rm 2b+1r)$

When we simplify the above equation, we get,

$\rm (6b+4r)- (\rm 2b+1r)\\\\6b+4r-2b-1r\\\\4r+3r$

Hence we can conclude that the expression for rice and beans after the return is (4b+3r).

To know more about simplification, follow the link given below.

brainly.com/question/12616840.

8 0

2 years ago

HELP ME PLZZ I NEED HELP WITH THIS !!

Anna [14]

It’s B cause he is going down to the negative so he is going to the left side

6 0

3 years ago

Mrs. Lowndes was building a play house for her grandson.

Vedmedyk [2.9K]

Answer:

21.25ft

Step-by-step explanation:

To solve for this, all you need to do is find a ratio proportional to the given. The given shows the following ratios:

$\dfrac{2in}{5ft}=\dfrac{8.5in}{x}$

All you need to do is solve for x. You can do this by first cross multiplying:

$\dfrac{2in}{5ft}=\dfrac{8.5in}{x}\\\\2in(x)=8.5in(5ft)\\\\2xin=42.5in/ft\\\\Divide\;both\;sides\;by\;2in\\\\\dfrac{2xin}{2in}=\dfrac{42.5in.ft}{2in}\\\\x=21.25ft$

8 0

4 years ago