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stiv31 [10]
3 years ago
6

Solve for u. 7/8-7/2u=-7/4 Simplify your answer as much as possible

Mathematics
2 answers:
Anna007 [38]3 years ago
8 0

Answer:

u = 3/4

Step-by-step explanation:

7/8-7/2u=-7/4

Make a common denominator of 8 for all fractions.

7/8 - 28/8 u = -14/8

Multiply both sides by 8.

7 - 28u = -14

-28u = -21

u = -21/(-28)

u = 3/4

Feliz [49]3 years ago
5 0

Answer: u = 4/3

Step-by-step explanation:

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A 28 ft ladder is leaned against the side of a building and its base is 5 ft away from the building. How far up the building wil
Sonja [21]

Answer:

27.55ft

Step-by-step explanation:

28²-5²=x

784-25=759

square root of 759=27.55

5 0
3 years ago
Please help, Will mark brainliest
mihalych1998 [28]

Answer:

y = - 8 x + 2

Step-by-step explanation:

Use any two pairs to find the slope with

slope = (y2-y1)/(x2-x1)

for example:  (0, 2), and (1, -6)

slope = (- 6 - 2) / (1 - 0) = - 8

so the equation should look like:

y = -8 x + b

use point (0, 2) to find b:

2 = - 8 (0) + b

b = 2

Then

y = - 8 x + 2

5 0
3 years ago
Lisa wrote the expression (3x + 6x) - 2(x + 1) + 5. She simplified the expression using the following steps:
Ivanshal [37]

Answer:

Step 1. Should be 3(x +2x) -2(x +1) +5 . . .

or . . . 3x(1 +2) -2(x +1) +5 . . .

or . . . 9x -2(x+1) +5

Step-by-step explanation:

Lisa apparently failed to realize that both terms inside the first set of parentheses have 3x as a factor. They are like terms, so could be combined directly. If Lisa really wants to factor out 3 or 3x, she could do so and then combine the remaining factors at another step.

6 0
3 years ago
Read 2 more answers
One week John earned three times as much as Alex earned mowing lawns. If they earned $48 altogether,how much did each one earn
Allisa [31]

Answer:Alex earned $12

              John earned $36

Step-by-step explanation:

j=3a

a+3a=48

4a=48

a=48/4

a=12

j=36

8 0
3 years ago
a bag of potting soil costs $3 less than a flower pot. Ike paid $41 for 3 flower pots and 5 bags of soil. how much does one bag
Arada [10]
Cost of bag of soil = x-3 where x is the price of a flower pot
41=3x + 5(x-3)
41=3x + 5x -15
41=8x -15
41+15=8x
56=8x
56÷8=x
$7.00=x
5 0
3 years ago
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