3 years ago

Simplify 3(y-1)+7 completely

Mathematics

1 answer:

SVEN [57.7K]3 years ago

4 0

Answer:

3y + 4

Step-by-step explanation:

3(y-1) +7

3y -3 +7

3y +4

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Choose the correct image showing the quadrilateral LXVZ (1, 1)

katrin2010 [14]

Answer:

The question doesn't make sense.

Step-by-step explanation:

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3 years ago

Mai biked 6 3/4 miles today , and Noah biked 4 1/2 miles . How many times the length of Noah’s bike did was mai’s bike rid

Doss [256]

Mai biked 1.5 times more distance than Noah.

Step-by-step explanation:

Given,

Distance biked by Mai = $6\frac{3}{4}=\frac{27}{4}$ miles

Distance biked by Noah = $4\frac{1}{2}=\frac{9}{2}\ miles$

Let,

x be the number of number of times.

Therefore;

$\frac{27}{4}=\frac{9}{2}x$

Multiplying both sides by 2/9

$\frac{2}{9}*\frac{27}{4}=\frac{2}{9}*\frac{9}{2}x\\\\\frac{3}{2}=x\\\\x=1.5$

Therefore;

Mai biked 1.5 times more distance than Noah.

Keywords: variable, fraction

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4 years ago

The area of triangle ABC is 24 square centimeters. If B = 30° and a = 6 cm, what is the measure of side c? 4 cm 8 cm 16 cm 32 cm

disa [49]

Answer:

16 cm

Step-by-step explanation:

Given : The area of triangle ABC is 24 square centimeters.

To Find: If B = 30° and a = 6 cm, what is the measure of side c?

Solution:

Formula : $Area = \frac{1}{2} \times a \times c \times sin B$

a = 6

Area = 24

B = 30°

Substitute the values in the formula

$24 = \frac{1}{2} \times 6 \times c \times sin 30$

$24 = \frac{1}{2} \times 6 \times c \times \frac{1}{2}$

$24 =3 \times c \times \frac{1}{2}$

$\frac{24 \times 2}{3} =c$

$16=c$

Hence the measure of side c is 16 cm

So, Option c is correct.

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3 years ago

The sum of two numbers is 55. The larger number is 19 more than the smaller number. What are the numbers?

n200080 [17]

Answer:18

Step-by-step explanation:

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3 years ago

7th grade help me plzz

ruslelena [56]

Answer:

As the temperature decreases, the weather gets colder.

b) 35 (40 - 5 = 35)

c) 10 ( 40 - 30 = 10)

d) 0 (40 - 40 = 0)

e) - 10 (40 - 50 = - 10)

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3 years ago