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Naily [24]
3 years ago
11

Solve the system of equations by the addition method. 8x- 7= -13 5x+ y= 0

Mathematics
1 answer:
kotegsom [21]3 years ago
5 0

Answer:

x=-3/4 y=15/4

Step-by-step explanation:

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anzhelika [568]

Answer:

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What ratio is equivalent to 1:4
steposvetlana [31]

Answer:

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Step-by-step explanation:

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8 0
3 years ago
Help can’t seem to figure out the base number?
fredd [130]

9514 1404 393

Answer:

  B = 6.65 in²

Step-by-step explanation:

The base area (B) is the area of the triangular base of the prism. You already know the sides of that triangle are 3, 5, and 7 inches. The figure shows the altitude to the side length 7 is 1.9 inches. The triangle area formula applies:

  A = 1/2bh

  A = 1/2(7 in)(1.9 in) = 6.65 in² . . . . area of one triangular base.

Then the area of one base is B = 6.65 in².

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The lateral area is the product of the perimeter and the height:

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The total surface area is the sum of the lateral area and the areas of the two bases.

  SA = LA + 2B

  SA = 180 in² + 2(6.65 in²) = 193.3 in²

3 0
3 years ago
A lecturer wants to divide a class of 18 students into 3 groups, each of 6 students, to do 3 different statistical projects.
Evgen [1.6K]

Answer:

<h3>The lecturer has to divide the class into 3 groups of 6 which have 1 girl in each group to have 1 girl in each class.</h3>

(sry if this sounds a little akward didn't have enough time to type this answer out).

8 0
2 years ago
A house on the market was valued at $472,000. After several years, the value increased by 19%. By how much did the house's value
Igoryamba

Step-by-step explanation:

Increase in dollars

19/100 x 472.000 = $89,670

and the current value house is $472,000 + $89,670 = $561,680

6 0
3 years ago
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