3 years ago

Determine how many cards, in an ordinary deck of fifty-two, fit the description. 4's and 5's

Mathematics

1 answer:

Rudiy273 years ago

8 0

Since there are four suits, with each having a 4 and 5, we have 2+2+2+2=2*4=8

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Solution of 4x-7y=-1

givi [52]

Answer:

There are an infinite number of solutions to this equation. One of which would be (-2, -1)

Step-by-step explanation:

In order to find any solution, start by picking a value for x. For the purpose of this exercise, we'll select -2. Now input that in for x and solve for y. The resulting ordered pair is a solution.

4x - 7y = -1

4(-2) - 7y = -1

-8 - 7y = -1

-7y = 7

y = -1

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3 years ago

What is the first step you will use to solve this equation:<br><br> 4x +2 = 7x - 13

Liono4ka [1.6K]

I would subtract 4x from 7x to get x on one side.

6 0

3 years ago

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Dahasolnce [82]

Answer:

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Step-by-step explanation:

7 0

3 years ago

The area of the right triangle shown is 30 ft squared. The segment XY has a length of 5 ft. Find the length of the hypotenuse.

alexgriva [62]

Answer:

Hypotenuse is 13 ft.

Step-by-step explanation:

A=(1/2)bh

30=(1/2)(5)(h)

30=2.5h

h=12 so ZY = 12ft

Then

$a^{2} +b^{2} =c^{2} \\5^{2} +12^{2} =c^{2} \\25+144=c^{2} \\169=c^{2}\\13=c$

8 0

3 years ago

Donovan can type 45 words per minute. He needs to type a report that is 9 pages long each page has about 300 words. What is a re

irinina [24]

Answer:

C.60

Step-by-step explanation:

Just multiply 300 by 9 and then divide by 45.

3 0

2 years ago