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Black_prince [1.1K]
3 years ago
7

Solve for u. 8u - 7 = -40 + 5

Mathematics
1 answer:
ElenaW [278]3 years ago
8 0

Answer:

u = 3.5 or (-7/2)

Step-by-step explanation:

8u - 7 = -40 + 5

8u - 7 = -35

8u = -28

u = 3.5

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(-8, -2) and (1, 9) find the slope
sergejj [24]

Answer:

11/9

Step-by-step explanation:

To find the slope

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

    = ( 9 - -2)/(1 - -8)

    = ( 9+2)/ (1+8)

    = 11/9

6 0
3 years ago
If 5(3x-7)=20 then what is 6x-8
Alexeev081 [22]
5(3x-7)=20
15x-35=20
15x= 55
x= 55/15
x= 11/3

Plug this x value in.
6(11/3)-8
66/3 -8
22-8
14

Final answer: 14
4 0
4 years ago
819 : 17 =?<br>Write your answer as a whole number and remainder.<br>R​
Sati [7]

Answer:

117 R=0

Step-by-step explanation:

819:7= 117 R=0

6 0
3 years ago
The science department of comstock high school must purchase a set of calculators for a class . if the cost of one calculator is
Liono4ka [1.6K]

Answer:

The estimated cost of 21 calculators is approximately $4,800

Step-by-step explanation:

we know that

To estimate the total cost of the calculators, multiply the cost of one calculator by the number of calculators, but first round the numbers to the tens place

so

Cost of one calculator-----> $241

Round to the tens place ----> $241=$240

Number of calculators ----> 21

Round to the tens place ----> 21=20

The estimate cost is

(240)(20)=(240)(10)(2)=$4,800

therefore

The estimated cost of 21 calculators is approximately $4,800

5 0
3 years ago
Please help me ASAP I will give you the Brainliest!!
timama [110]

Hello!

\large\boxed{z = 75^{\circ}}

In an isosceles trapezoid, both angles on each side of the base are congruent.

∠z ≅ 75°

∠y ≅ ∠x

Because of this, we can get the angle measure for z easily:

m∠z = 75°

8 0
3 years ago
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