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mariarad [96]
3 years ago
13

HELP GUYS THIS IS DUE TONIGHT

Mathematics
1 answer:
Effectus [21]3 years ago
6 0
Answer: 82
Combine both equations— (9x+46)+(7x•34)
Solve for X
X= 4
Plug 4 into the ADC equation and solve
ADC=82 degrees
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<h2><em>d≈1.73cm</em></h2><h2><em>Have a nice day </em></h2>
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Katrina is building a deck. She cuts 3 lengths of wood from a 72-inch board. The first length is 30 3.4 inches. The second lengt
stich3 [128]
Common denominators! 

<span>If you have to add... 3 fractions with 4 as the denominators: </span>
<span>Then you can combine the numerators: </span>

<span>a/c+ b/c = (a+b)/c and a/d + b/d + c/d = (a+b+c)/d </span>

<span>Let's plug in the numbers.</span>

<span>a=3, b=1, c=1, d =4 </span>
<span>3/4 + 1/4 + 1/4 = 5/4 or 1 1/4! </span>

<span>So the equation for the problem: </span>

<span>Lt = L1+ L2 + L3 + L4 or </span>
<span>L4 = Lt - L1 - L2 - L3 Plug in the numbers </span>

<span>L4 ( remains ) = L total, 72 - L1 ( first cut at 30 3/4 ) - L2 ( second cut 12 1/4 ) - L3 ( 16 1/4 ) </span>

<span>So 72 - 30 - 12 - 16 - 3/4 - 1/4 - 1/4 =? </span>
<span>( break this down into simple terms and do it in your head... </span>

<span>72 - 30 = 42, 42 - 21 = 30, 30 - 16 = 14, 14 - 3/4 = 13 1/4 - 1//4 = 13 - 1/4 = 12 3/4!</span>
8 0
3 years ago
Find the percent of increase. 1. original price: $60 retail price: $84?
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Answer:

use a/w=p/100

Step-by-step explanation:


7 0
3 years ago
A positive real number is 2 less than another. When 4 times the larger is added to the square of the smaller, the result is 49.
Kobotan [32]

Answer:

The numbers are

-2+3\sqrt{5}   and 3\sqrt{5}

Step-by-step explanation:

Let

x -----> the smaller positive real number

y -----> the larger positive real number

we know that

A positive real number is 2 less than another

so

x=y-2

y=x+2 ----> equation A

When 4 times the larger is added to the square of the smaller, the result is 49

so

4y+x^2=49 ----> equation B

substitute equation A in equation B

4(x+2)+x^2=49

solve for x

x^2+4x-41=0

The formula to solve a quadratic equation of the form

ax^{2} +bx+c=0

is equal to

x=\frac{-b\pm\sqrt{b^{2}-4ac}} {2a}

in this problem we have

x^2+4x-41=0

so

a=1\\b=4\\c=-41

substitute in the formula

x=\frac{-4\pm\sqrt{4^{2}-4(1)(-41)}} {2(1)}

x=\frac{-4\pm\sqrt{180}} {2}

x=\frac{-4\pm6\sqrt{5}} {2}

x=-2\pm3\sqrt{5}

so

The positive real number is

x=-2+3\sqrt{5}

Find the value of y

y=x+2

y=-2+3\sqrt{5}+2

y=3\sqrt{5}

6 0
4 years ago
Misty and Yesenia have a group of base ten blocks. Misty has six more blocks then Yesenia. Yesenia’s blocks represent 17. Togeth
motikmotik

We are given : Yesenia’s blocks represent 17.

<h3>Therefore, Yesenia has 1 ten block and 7 one blocks.</h3>

Misty has six more blocks then Yesenia and together they have 22 blocks.

<h3>Therefore, Misty has 6 ten blocks and 8 one blocks.</h3>

The total number of blocks represent 85.

Yesenia has blocks with a value 17.

<h3>Therefore, Misty has clocks with a value of 85-17 = 68.</h3>
6 0
3 years ago
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