3 years ago

7

Mathematics

2 answers:

Mashutka [201]3 years ago

7 0

Answer: 27 mec. pencils

Step-by-step explanation:

postnew [5]3 years ago

3 0

6.75 ghubvyubbbgyyvhguhb

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Here is a right angled triangle work out the value of x using trigonometry

Zolol [24]

$~~~~~\sin 30^{\circ} = \dfrac{\text{Perpendicular}}{\text{Hypotenuse} }\\\\\\\implies \dfrac 12 = \dfrac{8}x\\\\\\\implies x = 8\cdot2\\\\\\\implies x = 16 ~ \text{cm.}$

8 0

2 years ago

Solve the equation: 3(x - 4) = -21 *

romanna [79]

Answer:

x = -3

Step-by-step explanation:

simplify

3(x - 4) = -21

3x - 12 = -21

3x = = -9

x = -3

7 0

3 years ago

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A car rents for $250 per week plus $0.50 per mile.find the rental cost for a two-week trip of 500 miles for a group of three peo

Artyom0805 [142]

So 2 weeks mean
250x 2= 500
Then .50 per mile so 500 miles mean
.50 x 500= 250
In total it will be
500+250= 750

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3 years ago

This is on claskick 7th grade 7(m +2n)<br> 7( )+ 7 ( )

mixer [17]

Answer: 7(m+2m) is equal to 7(m) + 7(2m)

5 0

3 years ago

Solve for x:<br><br>5/7 = 4x/83

Simora [160]

Step-by-step explanation:

$\to \dfrac{5}{7} = \dfrac{4x}{83}$

By cross multiplication,

→ 83(5) = 4x(7)

→ 415 = 28x

In decimal : 14.8214286

7 0

3 years ago