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Savatey [412]
3 years ago
9

What is the value of 5x−2y=305

Mathematics
1 answer:
sammy [17]3 years ago
6 0

Answer:

x  = 61   y = 0

Step-by-step explanation:

5x − 2y = 305

-5x            -5x              Subtract 5x from both sides

-2y = -5x + 305            Divide both sides by -2

y = 2.5x - 152.5

A possible solution is x  = 61   y = 0

If this answer is correct, please make me Brainliest!

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ZA and ZB are vertical angles. If mZA= (5x – 4) and mZB = (2x – 1)º, then find the value of x. INI​
natulia [17]

Answer:

x = 1

Step-by-step explanation:

It is given that,

∠A and ∠B are vertical angles.

∠A = (5x – 4) and ∠B = (2x – 1)

We need to find the value of x.

We know that, the vertical angles are equal. So,

∠A=∠B

(5x – 4)=(2x – 1)

Taking like terms together,

5x-2x = 4-1

3x=3

x = 1

So, the value of x is equal to 1.

4 0
3 years ago
Select the correct solution set.<br> X + 17&lt;-3
madam [21]

Answer:

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Step-by-step explanation:

8 0
3 years ago
(20 points) Can someone explain to me how to multiply polynomials? Practice question: (y - 3) (y - 4)
kramer

Answer:

y² -7y+12

Step-by-step explanation:

first, you have to multiply each character on the first parenthesis to the second one, one by one. just like the picture attached.

then, combine all of the same variable. like the 2 variable that has y.

6 0
3 years ago
What is the value of 20+30(7+4)+5+2(7+99?
KATRIN_1 [288]

Answer:

the answer is 567

Step-by-step explanation:

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5 0
3 years ago
Read 2 more answers
Please help the question is attached below
jasenka [17]

Step-by-step explanation:

a)

we have 400 people. that is 10/10 of the whole group.

7/10 of the whole group drink tea. that is

400 × 7/10 = 40 × 7 = 280

that leaves 3/10 of the whole group not drinking tea

400 × 3/10 = 40 × 3 = 120

from the 280 tea drinkers 20% drink at lay e cups of tea each day. that is

280 × 20/100 = 28 × 2 = 56

because 20 out of 100 is the meaning of 20%.

and the remaining 80% of the tea drinkers drink less then 3 cups each day.

280 × 80/100 = 28 × 8 = 224

b)

out of the 400 people 56 drink at least 3 cups of tea each day. that is

56/400 = 7/50

7 0
2 years ago
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