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3 years ago

Helppp algebra!!!!!!!20 points!!!!!!!

Mathematics

2 answers:

vitfil [10]3 years ago

7 0

Answer:

Step-by-step explanation:

Don't worry!

gladu [14]3 years ago

4 0

Answer:

Step-by-step explanation:

it's more like 10 points

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There are two less nickels than dimes, and as many quarters, as nickels and dimes together. The total amount of money is $5.25.

katen-ka-za [31]

N=d-2
q=n+d =>q=(d-2)=q=2d-2
25q+5n+10d=525
replace q and n with d
25(2d-2) +5(d-2)+10d=525
50d-50+5d-10+10d=525
65d=585
d=9
n=7
q=16

3 0

3 years ago

What is 2(2x+1) equivalent to

Nostrana [21]

2(2x+1)= (2 x 2x) + (2 x 1) = 4x + 2

6 0

3 years ago

Read 2 more answers

7th grade math help me pleaseeee

Eduardwww [97]

Answer:

4x + 5y = 20

Step-by-step explanation:

4x + 5y = 20

5y = -4x + 20 (Subtract 4x to isolate 5y. Put the 4x in front of the 20)

y = $-\frac{4}{5}x$ + 4 (Divide all by 5 to isolate y)

And then it's done and in slope-intercept form

$-1< -\frac{4}{5} < 0$ or $-\frac{4}{5}$ is greater than -1 but less than 0

I hope this helped :)

3 0

3 years ago

Angel beats it's wings about 53 times each second. about how many times does Angel beat in 5 seconds

Vesna [10]

In 1 second it beats about 53 times In 5 seconds it will beat about (53/1*5) times = 265 times

7 0

3 years ago

Read 2 more answers

What number best completes both equations? 5/7÷1/3=? ?×1/3=5/7

Nat2105 [25]

Consider the given equations:

The first equation is as:

$\frac{5}{7} \div \frac{1}{3} = ?$

So, $\frac{5}{7} \div \frac{1}{3}$

= $\frac{5}{7} \times \frac{3}{1}$

Multiplying the given fractions, we get as

= $\frac{15}{7}$

Now, consider the second equation as:

$? \times \frac{1}{3} = \frac{5}{7}$

Multiplying by '3' to both the sides of the equation, we get

$? \times \frac{1}{3} \times 3 = 3 \times \frac{5}{7}$

$? = \frac{15}{7}$

So, the number which best completes both the equations is $\frac{15}{7}$ .

6 0

3 years ago