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salantis [7]
3 years ago
12

Its middle school math i need help

Mathematics
2 answers:
ziro4ka [17]3 years ago
8 0

Answer:

x=3

Step-by-step explanation:

4x + 2 = x + 11

subtract 2 and x from both sides

3x = 9

divide by 3 on both sides

x = 3

skad [1K]3 years ago
5 0

Answer:

x = 3

Step-by-step explanation:

4x+2 = x+11

Subtract x from each side

4x+2-x = x+11-x

3x+2 =11

Subtract 2 from each side

3x+2-2 =11-2

3x = 9

Divide by 3

3x/3 =9/3

x = 3

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A bank offers two special high-interest savings accounts if you deposit $500 and leave it untouched for 10 years. One pays 6 per
vazorg [7]

Answer:

The compound interest one is better by about 14 bucks.

Step-by-step explanation:

Simple interest:

500(1+.06*10)=800

Compound interest:

500(1+.05)¹⁰=814.45

6 0
3 years ago
I solved this problem : 33 + 45 + 78 how could i check my answer?​
Vlad [161]

Step-by-step explanation:

So the answer for 33+45+78 is 156.

If you want to check that, you can use inverse operations, so subtract.

156-78=78. (Check 78)

78-45=33 (Check 45 and 33)

Well, now it's checked because we used all the factors of the equation!

4 0
3 years ago
Read 2 more answers
4^x+7 = 8^2x-3 Solve each equation showing work please
RUDIKE [14]

If 4=2^2

8=2^3

(2^)2x+10=(2^)6x

(2^)6x-(2^)2x=10

(2^)2x×7=10, where x has no real value

3 0
3 years ago
What is the length of the base of a yield sign that has a height of 14 inches and has an area of 84 square inches? Write the num
Rufina [12.5K]
That's simple, it is 6. Hope this helps.
4 0
3 years ago
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Find the measure of an interior angle and exterior angle of a regular 24gon
Julli [10]

Answer:

Interior Angle: 165°

Exterior Angle: 15°

Step-by-step explanation:

So first you have to find the sum of all interior angles of a polygon with <u>24 sides</u>. This can be found using the formula:

sum = ( <em>n</em> - 2 ) * 180°     where '<em>n</em>' is the number of sides.

When '<em>n</em> = 24' then the sum is:

sum = ( 24 - 2 ) * 180°

Simplify and solve.

sum = 22 * 180°

sum = 3960°

Since there are 24 sides to the polygon, there are 24 interior angles. <u>Assuming that this polygon is equilateral</u>, you can surmise that:

<em>Interior Angle</em> = sum° / <em>n</em>   where n is the number of sides,

3960° / 24 = 165° = Interior Angle

Using that information, and combine it with the [Supplementary Angles Theorem] the exterior angle can be found by:

165° + x = 180°

Solve for x.

8 0
3 years ago
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