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Nezavi [6.7K]
2 years ago
7

These two triangles are similar. Find side lengths A and B

Mathematics
2 answers:
Zarrin [17]2 years ago
8 0

answer a=21÷3=7. b=5×3 =15

Step-by-step explanation:

because the second triangle is 1/3 of first triangle

irinina [24]2 years ago
6 0

Answer: used quizz it helps me

Step-by-step explanation: trust

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If ac =x+3 and db=3x-19, find ac
AveGali [126]
We need some sort of diagram to see what they are. Is there any way to say that ac = db? Either equal angles or equal lines. 
x + 3 = 3x - 19 Add 19
x + 3 + 19 = 3x Subtract x
21 = 2x
x = 21 / 2
x = 10.5

ac = 10.5 + 3
x = 13.5
 
7 0
3 years ago
Edward owes his parents $20 for a new video
Galina-37 [17]

Answer:

it would take Edward 8 to pay back his debt

Step-by-step explanation:

every 2 days he pays his parents 5 bucks so because 5 times 4 equals 20 he would have to multiply the 4 by 2 and that gets you 8 days

3 0
3 years ago
-2(7a+4b)-6c=<br> Simplify
jeka94

Answer:

Because of the minus sign

2 becomes - 2

The answer is -2

Multiply a and 7

Multiply a and 1

The a just gets copied along.

The answer is a

a

7*a evaluates to 7a

Multiply b and 4

Multiply b and 1

The b just gets copied along.

The answer is b

b

4*b evaluates to 4b

7*a+4*b evaluates to 7a+4b

Multiply -2 by 7a+4b

we multiply -2 by each term in 7a+4b term by term.

This is the distributive property of multiplication.

Multiply -2 and 7a

Multiply 1 and a

The a just gets copied along.

a

-2 × 7a = -14a

Multiply -2 and 4b

Multiply 1 and b

The b just gets copied along.

b

-2 × 4b = -8b

-2*(7*a+4*b) evaluates to -14a-8b

Multiply c and 6

Multiply c and 1

The c just gets copied along.

The answer is c

c

6*c evaluates to 6c

The answer is -14a-8b-6c

-2*(7*a+4*b)-6*c evaluates to -14a-8b-6c

The final answer is

-14a-8b-6c

Step-by-step explanation:

Please mark brainliest and have a great day!

4 0
2 years ago
5/8
irga5000 [103]

Answer:

5/12

Step-by-step explanation:

Total ear buds in Mrs. Jackson’s class = 5/8

Number of black ear buds in Mrs. Jackson’s class = 2/3

What fraction of

the scholars have black ear buds?

2/3 of the scholars have black ear buds in Mrs. Jackson’s class

2/3 of 5/8

= 2/3 × 5/8

= 10/24

= 5/12

Fraction of the scholars that have black ear buds = 5/12

3 0
2 years ago
If (2) - 2x - 6, which of these is the inverse of x)?
Romashka [77]

Answer:

Step-by-step explanation:

y=-2x+6.

since it is inverse the gradient has to be the opposite of the base equation : y =2x-6.

dont forget to put it as the brainliest answer if it helps.

7 0
2 years ago
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