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Luden [163]
2 years ago
9

Someone pls help asap this is supposed to be done it 3 min

Mathematics
2 answers:
insens350 [35]2 years ago
6 0

Step-by-step explanation:

$75      30%      0.70(75) = x      $52.50

$18       65%      0.35(18) = x      $6.30

$60      30%     0.70x = 42        $42

$35       20%     0.80x = 28       $28

$150      25%     0.75(150) = x     $112.50

serg [7]2 years ago
6 0
$75
$52.50
30%
0.70(75) = x
$18
$6.30
65%
0.35(18) = x
$60
$42
30% 0.70x= 42
$35
$28
20%
0.80x = 28
$150
$112.50
25%
0.75(150) =x
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Solve 1.3 (-6) (-4.25)
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Let m Z1=(3x)º, m 22=(5x-7)", m 23=(4x+15), and m ZAFD=128º. Find m44 and m ZBFD.​
olga55 [171]

Answer:

m<4 = 52°

m<BFD = 98°

Step-by-step explanation:

m<1 = (3x)°

m<2 = (5x - 7)°

m<3 = (4x + 15)°

m<AFD = 128°

✔️Find m<4:

m<4 = 180° - m<AFD (angles on a straight line)

Substitute

m<4 = 180° - 128°

m<4 = 52°

✔️m<BFD = m<2 + m<3

Substitute

m<BFD = (5x - 7)° + (4x + 15)°

We need to find the value of x.

Create an equation to find x.

m<1 + m<2 + m<3 = m<AFD (angle addition postulate)

Substitute

3x + 5x - 7 + 4x + 15 = 128°

Add like terms and solve for x

12x + 8 = 128

12x + 8 - 8 = 128 - 8

12x = 120

12x/12 = 120/12

x = 10

m<BFD = (5x - 7)° + (4x + 15)°

Plug in the value of x

m<BFD = 5(10) - 7 + 4(10) + 15

m<BFD = 50 - 7 + 40 + 15

m<BFD = 98°

4 0
3 years ago
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Natalka [10]
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3 years ago
How do you write 6,301.005 in standard form
Orlov [11]
<h3>Answer:</h3>

One of ...

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<h3>Step-by-step explanation:</h3>

It depends on where you are.

In the US, standard form is the way you have written the number. Your number would be 6,301.005.

The attachment gives some guidance for number formats in American publications. In certain publications, thin spaces are used instead of commas to separate groups of digits. The comma (or space) is often optional, but can enhance readability for large numbers.

In Britain, standard form is the form called "scientific notation" in the US. Your number would be 6.301005×10³.

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