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2 years ago

Find the value of x on both problems please help this is urgent and please show work

Mathematics

1 answer:

puteri [66]2 years ago

5 0

Answer:

Step-by-step explanation:

1) the triangle is right, so we can use the Pythagorean theorem

x^2 + 24^2 = (16+x)^2

x^2 + 576 = x^2 + 256 + 32x

32x = 320

x = 10

2) the two segment are congruent, so

7x - 13 = 9x - 23

2x = 10

x = 5

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12. Is 3 a solution to the equation 3x - 5<br> = 4 + 2x ? Explain<br> I

Savatey [412]

Answer:

Step-by-step explanation:

3x-5= 4+2x

Or, x=4+5

x=9

4 0

3 years ago

Read 2 more answers

85% of all cars sold in chicago are some color other than black. if three hundred black cars were sold in chicago, how many cars

hram777 [196]

Of 85% of cars sold where not black then 100-85% where black = 15%
let the number of cars sold be y
then 15%*y=300
y= 300 divided by 15%
= (300*100)/15
=2000
therefore 2000 cars were sold

7 0

3 years ago

Increase 12 1/2 cm by 25 mm

kondor19780726 [428]

12 1/2 = 12.5 2.5mm = 2.5 cm So the answer would be 15 cm

3 0

3 years ago

High grade steel consists of 85% iron and 15% magnese. Low grade steel consists of 67% iron and 33% mag ese. NASA orders 500 ton

Mamont248 [21]

Answer:

$361\dfrac{1}{9}$ tons of high steel and $138\dfrac{8}{9}$ tons of low steel

Step-by-step explanation:

Let x be the number of tons of high grade steel and y be the number of tons ow low grade steel needed.

In x tons of high grade steel there are

$0.85x$ tons of iron

$0.15x$ tons of magnese

In y tons of low grade steel there are

$0.67y$ tons of iron

$0.33y$ tons of magnese

NASA orders 500 tons of steel, so

$x+y=500$

and specifies that it must be in the proportion 80% iron and 20% magnese, so

$0.85x+0.67y=500\cdot 0.8\\ \\0.85x+0.67y=400$

From the first equation,

$x=500-y$

Substitute it into the second equation:

$0.85(500-y)+0.67y=400\\ \\425-0.85y+0.67y=400\\ \\-0.18y=-25\\ \\y=\dfrac{2,500}{18}=138\dfrac{8}{9}\ tons\\ \\x=361\dfrac{1}{9}\ tons$

7 0

3 years ago

Please help me please hurry

Naya [18.7K]

Answer

899

Step-by-step explanation:

8 0

2 years ago