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yarga [219]
3 years ago
6

12 pts!! solve for x. 4/5 (2x + 5) − 4 =1

Mathematics
2 answers:
tensa zangetsu [6.8K]3 years ago
8 0
4/5 (2x + 5) − 4 =1
4/5(2x +5) = 1 +4
4/5 (2x +5) = 5
2x + 5 = 5 / (4/5)
2x + 5 = 5 (5/4)
2x + 5 = 25/4
2x = 25/4 - 5
2x = 25/4 - 20/4
2x = 5/4
x = (5/4) / 2
x = (5/4) (1/2)
x = 5/8
x = 0.625
seropon [69]3 years ago
7 0
Let's solve for f.<span><span><span><span><span><span><span><span>fo</span>r</span>x</span><span>(0.4)</span></span>5</span><span>(<span><span>2x</span>+5</span>)</span></span>−4</span>=1</span>Step 1: Add 4 to both sides.<span><span><span><span><span><span><span><span>0.16f</span>o</span>r</span><span>x2</span></span>+<span><span>25</span><span><span><span>fo</span>r</span>x</span></span></span>−4</span>+4</span>=<span>1+4</span></span><span><span><span><span><span><span>0.16f</span>o</span>r</span><span>x2</span></span>+<span><span>25</span><span><span><span>fo</span>r</span>x</span></span></span>=5</span>Step 2: Factor out variable f.<span><span>f<span>(<span><span><span><span><span>0.8o</span>r</span><span>x2</span></span>+<span><span><span>2o</span>r</span>x</span></span>5</span>)</span></span>=5</span>Step 3: Divide both sides by (0.8orx^2+2orx)/5.<span><span><span>f<span>(<span><span><span><span><span>0.8o</span>r</span><span>x2</span></span>+<span><span><span>2o</span>r</span>x</span></span>5</span>)</span></span><span><span><span><span><span>0.8o</span>r</span><span>x2</span></span>+<span><span><span>2o</span>r</span>x</span></span>5</span></span>=<span>5<span><span><span><span><span>0.8o</span>r</span><span>x2</span></span>+<span><span><span>2o</span>r</span>x</span></span>5</span></span></span><span>f=<span>25<span><span><span><span>0.8o</span>r</span><span>x2</span></span>+<span><span><span>2o</span>r</span>x</span></span></span></span>Answer:<span>f=<span>25<span><span><span><span>0.8o</span>r</span><span>x2</span></span>+<span><span><span>2o</span>r</span><span>x</span></span></span></span></span>
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Which expression is equivalent to 6m+(m-2)(m+7)+3
Vika [28.1K]

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m^{2} + 11m - 11

Step-by-step explanation:

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3 years ago
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Lena [83]

The volume of the Apple iPad Mini 2 is 12.561 in³.

The new volume of the  Pear-Apple is  24.53 in³.

The new volume of the  Pear-Apple is 5.3in³.

The scale factor to have a volume that is half that of the iPad Mini is 0.79.

The scale factor to have a volume that is double that of the iPad Mini is 1.26

<h3 /><h3>What is the volume of the Apple iPad Mini 2?</h3>

Volume = length x width x height

7.9 x 5.30 x 0.30 = 12.561 in³

<h3>What is the volume after the scale factors are applied?</h3>

Dimensions after the 1.25 scale factor is applied: (1.25 x 7.9) x (1.25 x 5.30) x (1.25 x 0.3)

= 9.875 x 6.625 x0.375 = 24.53 in³

Dimensions after the 0.75 scale factor is applied: (0.75 x 7.9) x (0.75 x 5.30) x (0.75 x 0.3)

= 5.925 x 3.975 x 0.225 = 5.3in³

Scale factor to have a volume that is double that of the iPad Mini : 2^{1/3} = 1.26

Scale factor to have a volume that is half that of the iPad Mini : 0.5^{1/3} = 0.79

To learn more about scale drawings, please check: brainly.com/question/26388230

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of the 24 people at thanksgiving dinner. 1/8 of the people ate pumpkin pie. 1/2 ate cherry pie. 1/4 ate pecan pie. and 1/8 ate a
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So 1/8=0.125 and 24*0.125=3 so 3 people ate pumpkin pie.
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3 years ago
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