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2 years ago

Jenna+has+five+less+stamps+than+horacio.+gary+has+half+the+number+that+horacio+had.+all+together+they+have+a+total+of+75+stamps

Mathematics

1 answer:

nexus9112 [7]2 years ago

4 0

Haracio has 32 stamps. Jenna has 27 stamps. Gary has 16. You can solve this using matrices.

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Write the converse of this statement.<br><br> If 3 - 2x = 13, then x = -5.

stiv31 [10]

Basically your just swapping there positions like so:
if x=-5, then 3-2x=13
Hope this helps! :)

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3 years ago

What do you do to find m?

lesya692 [45]

Ok here is how to solve these I hope this helps
7 = 2-5m
+5m +5m
7+5m = 2
-7 -7
5m = -5
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<span>-Hope this helps :)</span>

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3 years ago

The figure below shows a shaded rectangular region inside a large rectangle:

pshichka [43]

Answer:

b. 58%

Step-by-step explanation:

Calculate the area of the entire rectangle using the formula A = lw.

The lowercase "L" is for length.

"w" is for width.

The lighter square is 10 units long by 5 inches wide.

A = lw

A = (10 in)(5 in) Multiply

A = 50 in²

Calculate the area for the shaded rectangle, 7 inches by 3 inches.

A = lw

A = (7 in)(3 in) Multiply

A = 21 in²

Calculate the area for the non-shaded region by subtracting the shaded area from the total area.

50 in² - 21 in² = 29 in²

The chance that a point in the large rectangle will NOT be in the shaded region is 29/50.

Convert this fraction to decimal form by using a calculator. Divide the top number by the bottom number.

29/50 = 0.58

0.58 is in decimal form. To convert it to a percentage, multiply the number by 100.

0.58 = 58%

Therefore the probability that a point chosen inside the large rectangle is not in the shaded region is 58%.

5 0

3 years ago

Which number would make this number sentence true?

nlexa [21]

Answer: 15

Step-by-step explanation: Take 12 and change the -3 to a regular 3.

(12 + 3 = 15.)

Whichever number in the question that’s bigger determines what integer it will have.

4 0

3 years ago

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If x – 10 is a factor of x2 – 8x – 20, what is the other factor?

Svetach [21]

Answer:

The other factor is $(x+2)$

Step-by-step explanation:

we know that

$(x-a)(x-b)=x^{2}-xb-xa+ab$

$(x-a)(x-b)=x^{2}-(a+b)x+ab$

In this problem we have

$x^{2} -8x-20$

and

$a=10$ -----> because is a factor

substitute and solve for b

$x^{2} -8x-20=x^{2}-(10+b)x+10b$

$8=10+b\\b=-2$

Verify in the second equation

$-20=10b$ -----> $-20=10(-2)$ -----> $-20=-20$ --> is ok

The other factor is $(x+2)$

3 0

2 years ago

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