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2 years ago

What is the slope of the line that passes through the points (–20, 18) and (30, 14)?

Mathematics

2 answers:

salantis [7]2 years ago

4 0

Answer:

-2 /25

Step-by-step explanation:

Tom [10]2 years ago

3 0

Answer:

-2/25

Step-by-step explanation:

m= y2-y1/x2-x1

m=14-18/30 -(-20)

m=-4/50

m=-2/25

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Do you know has three times as many dimes as quarters the dollar amount of her dimes and quarters is $6.05 how many quarters doe

vesna_86 [32]

The number of quarters she have 11.

<h3>What is a system of equations?</h3>

A system of equations is two or more equations that can be solved to get a unique solution. the power of the equation must be in one degree.

Let consider y = quarters; x = dimes

We know that there are 3 times as many dimes as quarters. So we can state that x = 3y.

Then, we say that 25y + 10x = 605

(Value of coin * amount of coins)

Then we substitute x=3y into the equation, yielding:

25y + 10(3y) = 605

25y + 30y = 605

55y = 605

605/55 = 11 = y

Therefore, the number of quarters she have 11.

Learn more about equations here;

brainly.com/question/10413253

#SPJ1

5 0

1 year ago

the first term in a geometric series is 64 and the common ratio is 0.75. Find the sum of the first 4 terms in a series.

Rufina [12.5K]

u0 = 64 with u(n+1) = un *0.75

u3 = 64 *0.75^3 = 27

sum is : 64 * ( 0.75^4 -1) / 0.75-1 = 175

manual proof : 64 + 48+36+27 = 175

6 0

3 years ago

Find the product (2/9) x (9/5)

nevsk [136]

We can set it up like this:
$\frac{2}{9}\cdot \frac{9}{5}$
Multiply straight...
$=\frac{2\cdot \:9}{9\cdot \:5}$
Simplify...
$=\frac{2}{5}$
That's our answer, we can also convert it to decimal.

Answer in fraction form: $=\frac{2}{5}$
Answer in decimal form: $0.4$

Let me know if you have any questions regarding this problem!
Thanks!
-TetraFish

6 0

2 years ago

Does anyone know how to solve this <br> The answer is B but can anyone explain why

Lana71 [14]

Answer:

B. (0,-1)

Step-by-step explanation:

see.. i'm not rude.... :/

6 0

2 years ago

Earl runs 35 meters in 10 seconds. How many meters does Earl run per second?

liraira [26]

If he ran 35 meters in 10 seconds, how many meters did he run in a second?
35m=10s
? =1
1/10*35m=3.5m
Therefore he ran 3.5 meters in a second.

8 0

2 years ago

Read 2 more answers