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Georgia [21]
3 years ago
9

Can someone help me with both of these? You can answer only one, however, If you answer both that is who gets brainliest. don't

answer just to take my points or you will get reported.

Mathematics
2 answers:
denis-greek [22]3 years ago
8 0

Answer:

20x+80

10/21

Step-by-step explanation:

20*x+20*4

20x+80

\frac{5}{7}*\frac{2}{3}

5*2=10

7*3=21

\frac{10}{21}

damaskus [11]3 years ago
3 0

Answer:

20x+80

10/21

Step-by-step explanation:

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A $40.00 skateboard is discounted 30%. If sales tax is 5%, what is the amount of tax paid?
tekilochka [14]
$29.40 ........ 40x0.3=12....... 40-12=28...... 28x1.05= $29.40
7 0
3 years ago
Read 2 more answers
Which triangle side lenghs form a right triangle
aalyn [17]

Answer:

angle of 90 degrees

Step-by-step explanation:

if the length satisfy the pythagorean theorem (a2+b2=c2) then it is a right traingle

5 0
3 years ago
Please help if you can.​
weeeeeb [17]

Answer:

1) Slope of the line  y = \frac{-3}{2}

2)Slope of the line m = 2

3) slope of the line m = -5

Step-by-step explanation:

<u><em>Step(i):-</em></u>

Given that equation of the straight line 3 x+2 y =0

The slope - intercept form    y = mx +c

                                              2 y = - 3x

                                              y = \frac{-3}{2} x

Slope of the line  y = \frac{-3}{2}

<u><em>Step(ii):-</em></u>

Given that equation of the straight line 2 x- y = 3

The slope - intercept form    y = mx +c

                                              y = 2x -3

slope of the line m = 2

<u><em>Step(iii):-</em></u>

Given that equation of the straight line 5 x + y = 10

The slope - intercept form    y = mx +c

                                              y = -5x +10

slope of the line m = -5

8 0
3 years ago
Ill mark brainlist plss help
kumpel [21]

Answer:

A) 3.6 in.

Step-by-step explanation:

36/10 = 3.6

4 0
2 years ago
Read 2 more answers
The amount (in percent) of a drug in a person's bloodstream h hours after its injection can be
8090 [49]

Answer:

32.41%

Step-by-step explanation:

f (h) = \frac{5h}{4h^{2} }  + 5

f (3.5) = 5(3.5)/4 (3.5)^2 +5

f(3.5) = \frac{17.5}{49} + 5

f(3.5) = 0.3241

0.3241 x 100 = 32.41%

5 0
3 years ago
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