3 years ago

What is x in equation 1-2x=21

Mathematics

1 answer:

Oksi-84 [34.3K]3 years ago

3 0

See attached pic

x = -10 is your answer

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Together a chair, a table, and a lamp cost $572. The chair costs 4 times as much as the lamp, and the table costs $23 less than

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Chair=4x
lamp=x
table=4x-23
4x+x+4x-23=562
9x=585
x=585/9
x=65
4x=260
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3 years ago

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A container in the shape of a rectangular prism has a base that measures 20 cm by 30 cm and has a height of 15 centimeters. The

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3 years ago

Which number has a 3 that is 10 times as much as the 3 in 24,345 A) 44,578 B) 89,236 C) 13,847 D) 56,243

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The 3 in 24,345 has a value of 300. A number 10 times that would have a value of 300*10 or 3,000. The 3 in choice C has a value of 3,000 so C is the right answer.

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3 years ago

Can I get some help abs an easy explanation pls

Svetlanka [38]

we are given the following triangles:

We are asked to determine the value of "y". To do that we will use the tangent of 25:

$\tan 25=\frac{y}{x}$

We solve for "y" by multiplying both sides by "x":

$x\tan 25=y$

Now, we take the tangent of 15:

$\tan 15=\frac{y}{30+x}$

Now, we solve for "y" by multiplying both sides by the denominator:

$(30+x)\tan 15=y$

Now, we set both values of "y" equal, we get:

$x\tan 25=(30+x)\tan 15$

now, we solve for "x". First, we apply the distributive property on the right side:

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1 year ago

Whats 6+9 i need help

lisov135 [29]

Answer:

5 + 4 = 9

5 + 1 = 6

5 + 5 + 4 + 1 = 15

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3 years ago