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3 years ago

Help will receive 20 points

Mathematics

1 answer:

djyliett [7]3 years ago

4 0

Answer:

(4,1)-(5,-2)

(6,1)-(5,-4)

(7,3)-(7,-5)

(2,4)-(8,0)

(1,3)-(7,1)

Step-by-step explanation:

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How many solutions are there to the system of equations? 4x-5y=5 and -.08x+.10y= 0.10No solution 1 solution 2 solutionsInfinite

dsp73

Infinite solutions

hope this helps

4 0

4 years ago

49 is 35% of what number?

NNADVOKAT [17]

We write this like this:

49=35%x

and we want to find the x.

let's invert the sides:

35%x=49.

35 is equal to 0.35

0.35*x=49

and now we only divide both sides by 0.35:

x=140

so the answer is 140.

(aternatively we can do it through fractions:

35/100*x=49
divide both sides by 7:

5/100*x=7

simplify the first fraction
1/20*x=7

and multiply by 20:

x=140

4 0

3 years ago

What is 60 increased<br> by 20%

valina [46]

Answer:

72.00

Step-by-step explanation:

hope this helps! :D

8 0

3 years ago

Evaluate tan^-1(1)<br> Easy points!!

STatiana [176]

Answer:

its 45

Step-by-step explanation:

lol thanks man

7 0

3 years ago

Read 2 more answers

school teacher and needs 22 pieces of wood, 3 over 8 ft long, for a class project. If he has a 9-ft board from which to cut the

tiny-mole [99]

Answer:

Yes, he will have enough 3 over 8 ft pieces for his class.

Step-by-step explanation:

Given:

Number of wood required = 22

Length of each wood, $l=\frac{3}{8}\textrm{ ft}$

Total length of the board, $L=9\textrm{ ft}$

Therefore, the number of woods that can be made using the given board is given as:

$\textrm{Number of woods made}=\frac{\textrm{Total length of board}}{\textrm{Length of each wood}}\\\textrm{Number of woods made}=\frac{L}{l}=\frac{9}{\frac{3}{8}}=9\times \frac{8}{3}=\frac{72}{3}=24$

So, he can make 24 woods of length $\frac{3}{8}\textrm{ ft}$ using the 9 ft board. But he has to make only 22 pieces.

Therefore, he has enough of the wood to make the required number of pieces.

3 0

3 years ago