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3 years ago

Which is the simplified version of 7x+12+3x=-6(x-7)+9x ?

Mathematics

1 answer:

Lubov Fominskaja [6]3 years ago

8 0

Answer:

x=30/7

Step-by-step explanation:

7x+12+3x=-6(x-7)+9x

10x+12=-6x+42+9x

10x+12=3x+42

10x-3x+12=42

7x+12=42

7x=42-12

7x=30

x=30/7

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A square technology chip has an area of 25 square centimeters how long is each side of the chip

grigory [225]

ANSWER

Each side of the chip is 5 centimeters long.

<u>EXPLANATION</u>

The chip is in the form of a square.

The formula for finding the area of a square is

$Area=l^2$

We were given in the question that, the area is 25 square centimeters. This means that,

$25=l^2$

We take the square root of both sides to get,

$\sqrt{25}=l$

$\Rightarrow 5=l$

Hence the length of the square technology chip is 5 centimeters

5 0

3 years ago

Two angles are complementary their difference is 26 degrees find the measures of each angles

Nuetrik [128]

Good morning ☕️

Answer:

-by-step explanation:

Let x be the measure of angle 1

and y be the measure of angle 2

The Two angles are complementary

means

x + y = 90

their difference is 26 degrees

means

x - y = 26

x + y = 90 (1)

x - y = 26 (2)

(1) - (2) ⇒2y = 64 ⇒ y =32°

therefore x = y + 26 = 58°

___________________________

4 0

3 years ago

Read 2 more answers

Can someone pls help? Thx

sergey [27]

Your answer would be -3/4n+3/8 because 1/4•-3/1n would be -3/4n and then 1/4•3/2 would be 3/8 so your answer would then be -3/4n+3/8.

5 0

3 years ago

Write the ratio 3 differnt ways AND give 3 equivalent ratios. five horses to seven dogs

Triss [41]

Answer:

5:7

5/7

5 to 7

10:14 --> 10x2=20 14x2=28

20:28 --> 20x2=40 28x2=56

40:56

7 0

3 years ago

How many four-digit whole numbers are there such that the leftmost digit is odd, the second digit is even, and all four digits a

kiruha [24]

Answer: There are 1400 different combinations.

Step-by-step explanation:

The conditions are:

we have 4-digits: abcd.

all the digits are different.

a is an odd number, and b is an even number.

Then, for a, we have the options 1, 3, 5, 7 and 9 (so we have 5 options).

for b, we have the options 0, 2, 4, 6 and 8 (so we have 5 options).

for c, we can have odd or even numbers, so we have 8 options ( remember that there where 2 numbers already taken away, this is why we have only 8 options).

for d we have 7 options (because 3 numbers are already taken).

Then the number of combinations is equal to the product of the number of options for each selection:

C = 5*5*8*7 = 1400

3 0

3 years ago