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3 years ago

14

Please answer with steps

1 answer:

Natali [406]3 years ago

7 0

1a. 21/3+32/5
((2*3)+1)/3+((3*5)+2)/5
7/3+17/5
(7*5+17*3)/15
86/15 1b. 2/3+3/5+2/5 (2*5+3*3+2*3)/15 (10+9+6)/15 25/15 5/3 2a. 57/10-22/5 (5*10+7)/10-(2*5+2)/5 57/10-12/5 (57*1-2*12)/10 33/10 2b. 5/12-1/4 (5*1-1*3)/12 2/12 1/6 3 say she has x stamps,she gave 2/9 and 1/5 to her frends so she is left with X-2x/9-x/5 (9*5x-5*2x-9*1x)/45 (45x-10x-9x)/45 26x/45 4. 7/10+1/5 (1*7+2*1)/10 9/10 5. Brick 21/3kg Stone (2*3+1)/3-(1*10+1)/10 7/3-11/10 (7*10-3*11)/30 (70-33)/30 37/30

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3 years ago

Can somone pls help me with this I have a C- in math and I really need help also a like show work on each one plsss

Lady bird [3.3K]

Answer:

1. $\frac{3}{8}$

2. $\frac{1}{4}$

3a. $-\frac{1}{4}$

3b. 3

3c. $-\frac{4}{5}$

4. $m = \frac{y_1 - y_2}{x_1-x_2}\\$

Step-by-step explanation:

1.

Rises 6 inches for every horizontal change of 16 inches

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Slope = 6/16

Slope = 3/8

2.

Rises 3 feet for every horizontal change of 12 feet

Slope = rise/run

Slope = 3/12

Slope = 1/4

3a.

$m = \frac{y_1 - y_2}{x_1-x_2}$

$m = \frac{3-2}{-2-2}$

$m = \frac{1}{-4}$

$m = -\frac{1}{4}$

3b.

$m = \frac{y_1 - y_2}{x_1-x_2}\\$

$m = \frac{-1 - 2}{-1-0}$

$m = \frac{-3}{-1}$

$m = 3$

3c.

$m = \frac{y_1 - y_2}{x_1-x_2}\\$

$m = \frac{1 - (-3)}{-1-4}\\$

$m = \frac{4}{-5}\\$

$m = -\frac{4}{5}$

4.

$m = \frac{y_1 - y_2}{x_1-x_2}\\$

7 0

3 years ago

What is the height of the trapezoid if the Area = 77 ft²? The h we don't know but the base is 14 and the line on top is 8. pleas

velikii [3]

Answer:

h = 7.333....

Step-by-step explanation:

Formula is A = 1/2h(b1+b2)

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77=1/2h(14+8)

77 = 1/2h(22)h

77/10.5 = 10.5h/1.5

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3 years ago

HELP WILL MARK YOU BRAINLIEST!! NO FAKE ANSWERS

lara31 [8.8K]

The answer is B

Solution:
Find perimeter (L+B+L+B)
600+300+600+300= 1,800
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600x500= 300,000

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2 years ago

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