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Tanya [424]
3 years ago
10

3(8⋅7−45)+5(6⋅4−1) Just checking to see if it is right

Mathematics
2 answers:
AveGali [126]3 years ago
6 0

Answer: 148

Step-by-step explanation:

tino4ka555 [31]3 years ago
4 0

Answer:

3(8⋅7−45)+5(6⋅4−1) = 148

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The sum of the angle measures in a 21-gon is
Dominik [7]

Answer:

180

Step-by-step explanation: The exterior angles sum to 360 and there are 21

6 0
3 years ago
A washer and a dryer cost 634 dollars combined. The washer cost 66 dollars less than the dryer. What is the cost of the dryer?
Nutka1998 [239]

Steps to Solve:

1.  634 / 2 = 317

2. 317 + 66 = 383

Answer:

A = $383

Notes:

Read the question, this problem is not that hard to solve!

8 0
3 years ago
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Blueberries are on sale for $2.80 per pint. The regular price is $3.50 per pint. What is the percent of decrease?
maks197457 [2]
The answer is 7% because the sale amount was .70 cents.
3 0
3 years ago
13<br> 14 - 1<br> 7 +<br> 1<br> 2 = what??
Studentka2010 [4]

Answer:

36

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Find an equation of the line satisfying the given conditions Through (6,4); perpendicular to 3X + 5Y =38
Katyanochek1 [597]
To answer this, we will need to know:

• The slope of the equation we are trying to get
• The point it passes through using the 

First, we will need to find the slope of this equation. To find this, we must simplify the equation 3x+5y=38 into y=mx+b form. Lets do it!

3x+5y=38
= 5y = -3x+38 (Subtract 3x from both sides)
= y= -\frac{3}{5}x+ \frac{38}{5} (Divide both sides by 5) 

The slope of a line perpendicular would have to multiply with the equation we just changed to equal -1. In other words, it would have to equal the negative reciprocal.

The negative reciprocal of the line given is \frac{5}{3}. 

Now that we know the slope, we have to find out the rest of the equation using the slope formula, which is:

\frac{y-y _{1} }{x- x_{1} }=m

Substituting values, we find that:

\frac{y-4}{x-6}= \frac{5}{3}

By simplifying this equation to slope-intercept form (By cross-multiplying then simplifying), we then get that: 

y= \frac{5}{3}x-6 , which is our final answer.

Thank you, and I wish you luck.
8 0
4 years ago
Read 2 more answers
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