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2 years ago

Please can u answer all the questions!!! Thank u soo much

Mathematics

1 answer:

DiKsa [7]2 years ago

5 0

4.a) 2x=7*3

2x=21

x=21/2 OR

x=10.5

4.b)5x=25*6

5x=150

x=150/5

x=30

4.c)4x=5*14

4x=70

x= 70/4

x=17.5

4.d)4x=9*3

4x=27

X=27/4

X=6.75

4.e)x=0.05*3

X=0.15

4.f)x=0.25*7

X=1.75

4.g)x=0.4*1.5

X=0.6

4.h)x=0.7*2.2

X=1.54

5a)x/7=7-3

X/7=4

X=4*7

X=28

B)2x/5=3+8

2x/5=11

2x=11*5

2x=55

X=55/2

X=27.5

C)2x/3=74-26

2x/3=48

2x=48*3

2x=144

X=72

(I can’t finish all but it is the same method )

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Step-by-step explanation:

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2 years ago

Help? Solve the system of equations.<br><br> y = 3x<br> y = x2 + 3x – 16<br> solutions: ( );( )

mote1985 [20]

Answer:

(- 4, - 12 ) , (4, 12 )

Step-by-step explanation:

Given the 2 equations

y = 3x → (1)

y = x² + 3x - 16 → (2)

Substitute y = x² + 3x - 16 into (1)

x² + 3x - 16 = 3x ( subtract 3x from both sides )

x² - 16 = 0 ( add 16 to both sides )

x² = 16 ( take the square root of both sides )

x = ± $\sqrt{16}$ = ± 4

Substitute these values into (1) for corresponding values of y

x = - 4 : y = 3 × - 4 = - 12 ⇒ (- 4, - 12 )

x = 4 : y = 3 × 4 = 12 ⇒ (4, 12 )

6 0

2 years ago

Gavin invests $5,000 in a savings account that pays 3.75% simple interest. How much will be in the account after 6 years if Gavi

ivolga24 [154]

Answer:

$6261.62

Step-by-step explanation:

A=Pe^rt forumla

A=5000e^0.0375(6)=6261.612633

I rounded e to 2.71828 for calculator reasons

and I rounded the number two places since it is a monetary value.

I tried hope it helps!!!

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2 years ago

a retail owner can but a certain clock at an average price of $53 per clock and sell them for an average price of $84 per clock.

Butoxors [25]

Answer:

the answer is this

Step-by-step explanation:

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4 0

1 year ago

Read 2 more answers

Simplify each expression.

GrogVix [38]

Answer:

9. Let's simplify step-by-step.

Ans. 5x + 24 + 147

Combine Like Terms:

= 5x + 24 + 147

= ( 5x ) + ( 24 + 147 )

= 5x + 171

10. Let's simplify step-by-step.

Ans. 3x + ( 7x + 10 )

Combine Like Terms:

( 3x + 7x ) + 10

10x +10

11. Let's simplify step-by-step.

Ans. 5x + ( 2 + 3 )

5x + 5

12. 4 * 10

Ans. 40

13. 3 ( 12x )

Ans. 36x

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Ans. 14r + 6x + 9y

Hope it helps

Please mark me as the brainliest

Thank you

6 0

2 years ago