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erma4kov [3.2K]
3 years ago
6

What is the product is 7x-4 and 8x +5​

Mathematics
2 answers:
Anettt [7]3 years ago
6 0
7x-4=8x+5
+4 +4
7x=8x+9
-8x -8x
-1x=9
divide -1 on both sides
x=-9
raketka [301]3 years ago
5 0

Answer:

To find the product, we use FOIL method.

First terms

Outer terms

Inner terms

Last terms

Product = (7x * 8x) + (7x * 5) + (-4 * 8x) + (-4 * 5) =

Product = 56x2 + 35x - 32x - 20 =

Product = 56x2 + 3x - 20

Step-by-step explanation:

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How do if-then statements describe mathematical relationships?
Tanzania [10]

Answer:

Hypotheses followed by a conclusion is called an statement conditional statement. This is read - if then . A conditional statement is false if hypothesis is true and the conclusion is false. ... If we re- arrange conditional statement or change parts of then we have what is called a related conditional .

3 0
3 years ago
Can someone explain how to do these. Also on number 2, how do u find the ratio ?
KIM [24]

9514 1404 393

Answer:

  2. D

  3. B

  4. D

  5. A

Step-by-step explanation:

2. Write the ratio using the given words, then fill in the corresponding numbers. Factor out the greatest common factor.*

  soccer players : volleyball players = 84 : 36 = 12·7 : 12·3 = 7 : 3

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3. The <em>angle bisector</em> has angle marks on either side of it. The only angle marks are at angle G, where GL is the bisector.

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4. The <em>median</em> is drawn from a vertex to the midpoint of the opposite side. The only side with a midpoint marked is IG with midpoint J. The median is HJ.

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_____

* For larger numbers, or ones whose factors you aren't familiar with, it can be useful to know Euclid's method for finding the greatest common factor (GCF). Divide the larger number by the smaller and keep the remainder. If the remainder is 0, the smaller is the GCF. If not, replace the larger number with the remainder and repeat.

Here, that looks like ...

  84 / 36 = 2 r 12

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4 0
3 years ago
There are 14 black pens out of 25 pens. What percent of the pens are black?
Musya8 [376]
The answer is 56 percent black pens
7 0
3 years ago
A=c+(-10) Solve for c in terms of other variables.
True [87]
To do this we need to move 10 to other side.  To accomplish this you just need to add 10 to both side since (-10) 

so 
A+ 10 = c -10 + 10 
we get
A+ 10 = c

lets say it wasn't -10 but positive 10. 

A = c + 10  then we would subtract 10 from both sides

A -10 = c + 10 - 10 
we get 
A  - 10 = C 
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3 years ago
A buisness in the florida keys offers key west jet ski tours for the following rates:
Luden [163]
No, because 2 / 2 is not 3/4
7 0
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