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3 years ago

Word Problem:

Mathematics

1 answer:

Alexxandr [17]3 years ago

6 0

Answer:

Q:1- play 2

Q:2- play 1

Step-by-step explanation:

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Solve the following system of equations algebraically:<br> 4x - 5y = 18<br> 3x – 2y = 10

fiasKO [112]

Answer:

Step-by-step explanation:

Given the 2 equations

4x - 5y = 18 → (1)

3x - 2y = 10 → (2)

Multiplying (1) by 3 and (2) by - 4, then adding will eliminate the x- term

12x - 15y = 54 → (3)

- 12x + 8y = - 40 → (4)

Add (3) and (4) term by term to eliminate x, that is

- 7y = 14 ( divide both sides by - 7 )

y = - 2

Substitute y = - 2 into either of the 2 equations and solve for x

Substituting into (1)

4x - 5(- 2) = 18

4x + 10 = 18 ( subtract 10 from both sides )

4x = 8 ( divide both sides by 4 )

x = 2

solution is (2, - 2 ) → D

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3 years ago

The degree measure of an angle in a right triangle is x, and sin x = 0.354, which of the following expressions is also equal to

almond37 [142]

What are the expressions?

6 0

3 years ago

Read 2 more answers

A construction company is considering submitting bids for two contracts. The company estimates that it has a

Paraphin [41]

Answer: 0.57

Step-by-step explanation:

khan academy

7 0

3 years ago

How do I solve (6^-2)^2 ?

makvit [3.9K]

(6^-2)^2 = 1/1296 = 0.0007716049382716 hope this is what you were looking for. the math is right tho for (6^-2)^2 most calculators can do this easy just do 6^-2 then after just do ^2

8 0

3 years ago

Syd chooses two different primes, both of which are greater than $10,$ and multiplies them. The resulting product is less than $

Mars2501 [29]

Answer:

Step-by-step explanation:

There are 7 primes between 10 and 35: 11, 13, 17, 19, 23, 29, 31.

The product of 11 and any of the others will be less than 350, 6 products.

The product of 13 and any below 26 will be less than 350, 3 more products.

The product of 17 and any below 20 will be less than 350, 1 more product.

There are a total of 10 different products below 350 possible.

_____

11·13, 11·17, 11·19, 11·23, 11·29, 11·31, 13·17, 13·19, 13·23, 17·19

6 0

3 years ago