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2 years ago

Simplify 5a + 2c + 3a + c 1. 8a + 3c 2. 8a + 2c 3. 10ac

Mathematics

1 answer:

zloy xaker [14]2 years ago

5 0

Answer:

1. 8a+3c

Step-by-step explanation:

5a+2c+3a+c

8a+2c+c

Solution: 8a+3c

I hope this helps!

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Find the slope of the line that passes through (2,21) and (84, -30)

Flura [38]

Answer:

-51/82.

Explanation:

Given two points (x1,y1)=(2,21) and (x2,y2)=(84,-30), we find the slope using the formula below:

$m=\frac{y_2-y_1}{x_2-x_1}$

Substitute the given points:

$\begin{gathered} m=\frac{-30-21}{84-2} \\ m=-\frac{51}{82} \end{gathered}$

The slope of the line that passes through the given points is -51/82.

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1 year ago

Write an equivalent expression by factoring.<br><br>5x + 15

nata0808 [166]

Answer:

5(x+3)........ ...........

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3 years ago

If you can drive 340 miles in 5 hours, what is the unit rate? *<br> (2 Points)<br> Enter your answer

Marianna [84]

I believe it would be 68 miles per hour! To find the unit rate here you would divide miles by hours, or 340 by 5, which would give you 68.

3 0

3 years ago

Crawling Crayfish!

boyakko [2]

Answer: Crayfish, 25 s

Step-by-step explanation:

Given

The length of race is 60 cm

Flicker gets a 10 cm head-start

Cray fish covers 6 cm in 5 s i.e. its speed is

$\Rightarrow \dfrac{6}{5}=1.2\ cm/s$

Flicker covers 4 cm in 5 s, its speed is

$\Rightarrow \dfrac{4}{5}=0.8\ cm/s$

Time taken by Cray fish to cover the race is

$\Rightarrow t_1=\dfrac{60}{1.2}\\\\\Rightarrow t_1=50\ s$

Time taken by flicker to cover race with 10 cm head start

$\Rightarrow t_2=\dfrac{60-10}{0.8}\\\\\Rightarrow t_2=62.5\ s$

Time taken by crayfish is less. Hence, crayfish wins the race

When they both covers the same distance, they tied momentarily i.e.

$\Rightarrow 1.2t=10+0.8t\\\Rightarrow 0.4t=10\\\\\Rightarrow t=\dfrac{10}{0.4}\\\\\Rightarrow t=25\ s$

After 25 s, they tied the race.

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3 years ago

Eileen collected 98 empty cans to recycle and Carl collected 82 cans they packed and equal number of canes into each of three bo

marta [7]

To solve this you have to add 98 and 82 together then divide by three so the answer would be 60

6 0

3 years ago

Read 2 more answers