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poizon [28]
3 years ago
9

Solve by substitution 3x-4y=-4 y=2x-4

Mathematics
1 answer:
dybincka [34]3 years ago
7 0

Answer:

x=4 and y=4

Step-by-step explanation:

From first function we have:

3x - 4y =  - 4 \\ 4y = 3x  + 4

And from the second one:

y = 2x - 4 \\ 4y = 8x - 16

Substitute them:

4y = 3x + 4 \\ 4y = 8x - 16 \\  \\ 0 =  - 5x + 20 \\ x = 4 \\ y = 4

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Your friend deposits $1900 in an account that earns 6% compounded
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Answer:

$2,128

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Angela likes to use two walking sticks when she goes hiking but the two walking sticks she has been giving wrestling are differe
Mazyrski [523]
Given:
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short stick: 3 1/2 feet

convert mix fractions into improper fractions:

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19/5 - 7/2 ⇒ (19/5 * 2/2) - (7/2 * 5/5) = 38/10 - 35/10 = (38 - 35)/10 = 3/10

3/10 feet should be cut from the longer stick so that the two walking sticks will be the same length.

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3 years ago
20% of the students in Mrs. Smith's class are in art club, how many students are in the entire class?
Fynjy0 [20]
There needs to be more information to solve this question.
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2 years ago
In a parallelogram ABCD, angle a=70, find 2angle d​
Natali [406]

Answer:

D = 110

Step-by-step explanation:

Given,

In a parallelogram ABCD,

∠A =70∘

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2 years ago
Read 2 more answers
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