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viva [34]
3 years ago
9

I need someone to Solve this equation with a substitution method only

Mathematics
1 answer:
nikklg [1K]3 years ago
3 0

Answer:

X=1

Step-by-step explanation:

1. Since y equals both 2x+5 and 4x+5, you can substitute 2x+5 for y into the first equation.

2. You then have 2x+5=4x+3

3. Then, solve the equation

4. 5=2x+3 (Subtract 2x from both sides)

5. 2=2x (Subtract 3 from both sides)

6. x=1 (Divide both sides by 2)

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Help me out please!!​
Alexeev081 [22]

Answer:

Form: 2^7, 2^7 = 128

Step-by-step explanation:

You cannot multiply exponent, you must add the exponents.

4 + 3 = 7.

Keep the base the same.

Then find what 2^7 is.

Multiply:

2 x 2 x 2 x 2 x 2 x 2 x 2.

2 x 2 =

4 x 2 =

8 x 2 =

16 x 2 =

32 x 2 =

64 x 2 =

128.

4 0
3 years ago
Read 2 more answers
The guitar that you always wanted is on sale in the music store. It costs 2/3 the original price. The guitar now costs $1996.67,
AysviL [449]

Answer:

3,327.9

Step-by-step explanation:

now: 1996.67

original: 3,327.9

1996.67/.6 = 3,327.9

4 0
3 years ago
Estimate the product of 86 and 492
Aleks04 [339]
86 × 492 = about 42,000
7 0
3 years ago
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What is 8 1/5 as a improper fraction
krek1111 [17]

Answer:

41/5

Step-by-step explanation:

So the answer is that 8 1/5 as a decimal is 8.2.

We convert it to an improper fraction which, in this case, is 41/5 and then we divide the new numerator (41) by the denominator to get our answer.

4 0
3 years ago
Kim ran a mile in PE class. After resting for 1 hour her heart rate was 75 beats per minute. If her heart rate decreased by ⅖ ,
Andreas93 [3]

Answer:

125

Step-by-step explanation:

since you take away 2/5 of the original number to get 75, 75 is equal to 3/5's of the original. You then divide 75 by 3, get 25, then multiply 25 by 5 to find the answer which is 125.

6 0
3 years ago
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