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Luba_88 [7]
2 years ago
7

What’s the factory of 15y - 21z

Mathematics
2 answers:
Digiron [165]2 years ago
7 0

Answer:

3(5y-7z)

Step-by-step explanation:

3x5=15

7x3=21

lora16 [44]2 years ago
7 0

Answer:

3(5y - 7z) .

Step-by-step explanation:

The GCF of 15 and 21 is 3 so:

15y - 21z = 3(5y - 7z)

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A town in east Texas recieved 10 inches of rain in two weeks. If it kept raining at this rate for a 31-day month, how much rain
Gelneren [198K]
The best way to approach this problem is to find out how much fell in week. As you know what two weeks is, you simply have to halve this, giving you that one week is 5 inches of rain. One you have this, you can multiply this by 4 (as this will give you 4 weeks, or 28 days), and this gives you 20 inches in 28 days. You should then find the odd three days. If you divide 5 by 7, this will give you the rain fall in one day. 5/7= 0.8 inches per day. You then have top multiply this by 3 (as you've got three odd days), and this gives you 2.4. You then have to add together 2.4 and 20, giving you 22.4
Therefore, if the rain continued to fall at the same rate for 31 days, it would receive 22.4 inches of rain.
Hope this helps :) 
8 0
3 years ago
Which inequality represents this statement?
iren [92.7K]

Answer: the last one!! n\leq 5

Step-by-step explanation:

When there is a line under it means no more than!

8 0
2 years ago
Which ordered pair does NOT lie on the graph of h(x)=-2x + 7
goblinko [34]

Answer: A (-2, 3)

Step-by-step explanation:

1. To know which oredered pairs does not lie on the graph, you must substitute the x-coordinate of each one of thm into the function and if you obtain the y-coordinate shown in that ordered pair, then that point lies on the graph.

2. Therefore, you have:

A. x=-2

h(x)=-2(-2)+7=11 (It does not lie on the graph).

B. x=--1

h(x)=-2(-1)+7=9 (It lies on the graph).

C. x=3

h(x)=-2(3)+7=1 (It lies on the graph).

D. x=4

h(x)=-2(4)+7=-1 (It lies on the graph).

Therefore, the answer is the option A.

5 0
2 years ago
Read 2 more answers
The fact your family Drove from Arizona to Malibu ,California to spend a week at the beach they drove
prisoha [69]
To solve this question, you need to do 421 divided by 9.

421 divided by 9 will get you a long number, which is 46.7777778.

Round your number up by the hundredths place. You will get 46.78.

The average speed in miles per hour would be 46.78 MPH.
6 0
3 years ago
How would you solve this?
siniylev [52]

Answer:

Step-by-step explanation:

hello :

(x-4)²(x+3)² = -1

means : ((x-4)(x+3))² = - 1 this equation has no solutions in R

because for all x in R : ((x-4)(x+3))² ≥ 0

3 0
2 years ago
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