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maksim [4K]
4 years ago
14

A weight of 15 ounces stretches a spring 10 inches. A weight of 24 ounces stretches the same spring 16 inches.

Mathematics
2 answers:
alexira [117]4 years ago
7 0
Each ounce stretches the spring 1.5 inches
LenKa [72]4 years ago
7 0

16-10 = 6 inches

24-15  = 9 ounces

it stretches 6 inches when 9 ounces are added

 divide 6 inches by 9 ounces

6 / 9 = 0.67 inches per ounce

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a bag holds 1200 marbles colored either blue, red, green, or pink. there are 2 more blue than green, 6 more green than red and 6
krek1111 [17]
B = 2 + g . . . (1)
g = 6 + r . . . (2)
r = 6 + p . . . (3)

Putting (3) into (2) gives:
g = 6 + 6 + p = 12 + p . . . (4)
Putting (4) into (1) gives:
b = 2 + 12 + p = 14 + p . . . (5)

b + g + r + p = 1200
2 + g + 6 + r + 6 + p + p = 1200
2 + 12 + p + 6 + 6 + p + 6 + p + p = 1200
32 + 4p = 1200
4p = 1200 - 32 = 1168
p = 292

From (5), b = 14 + p = 14 + 292 = 306

Therefore, there are 306 blue mables.
8 0
4 years ago
Simplify the expression below.<br> (8^2)^6<br><br> A.) 8^4<br> B.) 8^3<br> C.) 8^12<br> D.) 8^8
blagie [28]
Multiply exponents together if it is on another exponent
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6 0
3 years ago
Joan has earned grades of 88, 94, 92, and 98 on math tests so far. What must her next grade be to give her an average grade of 6
Ira Lisetskai [31]

Answer:

see the explanation

Step-by-step explanation:

Let

x ------> the next grade

we know that

To find the average grade sum the grades by the number of math test

so

60=\frac{(88+94+92+98+x)}{5}

solve for x

Combine liker terms in the right side  

60=\frac{(372+x)}{5}

Multiply by 5 both sides

300=372+x

Subtract 372 both sides

300=372+x

x=-72 -----> this is not make sense

The grade cannot be a negative number

so

For x=0

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\frac{(372)}{5}=74.4

3 0
3 years ago
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AnnZ [28]
<DAB & <CAE are congruent because they are vertical to each other
<DAC &<BAE are congruent because they are vertical of each other
3 0
4 years ago
2 points
Reil [10]

Answer: 10000(1.04)^x

Step-by-step explanation: every year your interest increases 4%

And you get multiplier 1.04. After first year you have 10400 and next year you multiply it by 1.04 again.

7 0
3 years ago
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