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Sergio039 [100]
3 years ago
14

What is the value of y in the equation 5x+2y=20, when x=0.3

Mathematics
1 answer:
Rasek [7]3 years ago
8 0

5x+2y=20

Substitute 0.3 for x

5(0.3)+2y=20

Multiply 5 by 0.3

1.5+2y=20

Subtract 1.5 from both sides

2y=18.5

Divide 2 on both sides

Final Answer: y= 9.25

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2 years ago
Please help me i'm struggling!
anyanavicka [17]

Answer:

B.

Step-by-step explanation:

x < 2 means all numbers less than 2. that is an open dot on 2 and shading to the left.

x >= -8 means -8 and all numbers greater than -8. that is a closed dot on -8 and shading to the right.

Answer: B.

8 0
3 years ago
Great freight a local shipping company charges .40 per pound for shipping if your shipping 20 pounds what would the cost be
masya89 [10]

Answer:

$8.00

Step-by-step explanation:

For every pound shipped, $0.40 is charged. This can be represented by the mathematical equation: y=0.4x, where x is the pounds to ship and y is the total cost. If we plug in 20 as x to find what the total cost would be, we would have the equation, y=0.4*20, and y would equal 8, meaning that the total cost is $8.00.

4 0
3 years ago
I will give brainiest to whoever answers correctly !!
Diano4ka-milaya [45]

Answer:

$10511.075

Step-by-step explanation:

Given :

Interest rate, r =. 1.25% = 0.0125 compounded semianually

Principal = 10000

Number of years, t = 4 years

Compound interest :

A = P(1 + r/n)^nt

A = final amount ; n = number of compounding times per period

n = 2 (quarterly)

A = 10000(1 + 0.0125/2)^2*4

A = 10000(1 + 0.00625)^8

A = 10000(1.00625)^8

A = 10000 * 1.051107529

A = 10511.075

Final. Amount to. Be repaid = $8515.13

7 0
2 years ago
23+4y=63 what does y equal?
Sladkaya [172]

Answer:

y=10

Step-by-step explanation:

1. Make sure that the variable is left alone on the other side of the equal sign

2. remove all the no. on the variable side

3. subtract 23 from both sides hence left with 4y

4. divide the 40 u by 4 hence giving u 10

DONE

5 0
3 years ago
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