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2 years ago

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The sum of two numbers is 90. The larger number is 14 more than 3 times the smaller number. Find the numbers. First complete the

equations below, where x stands for the larger number and y stands for the smaller number. x + y = ?; x=?+?y

1 answer:

patriot [66]2 years ago

4 0

Just use photo math it will work

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What are the x- and y-intercepts of a line that passes through (5, 18) with a slope of 2?

WINSTONCH [101]

18=2(5)+b
b=8 y intercept is 8

0=2(x)+8
-8=2x
x=-4
X intercept is -4

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2 years ago

a school had 690 students sign up for the trivia teams if they wanted to have nine teams with the same number of students on eac

uysha [10]

Answer:

3 more students need to sign up

Step-by-step explanation:

Let the equal number of students in 9 teams be x.

Total number of signed up students = 690.

Let t be the required number of students to be signed.

Therefore, 9x = 690+t.

This means, 690+t is a multiple of 9.

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2 years ago

which has a greater effect on the volume - changing the radius by a given amount or changing the height by the same amount/ why?

AURORKA [14]

Assuming we’re talking about a cylinder, whose volume formula is V = pi r^2 h…

It will have a greater effect to change a variable’s value that has a greater power on it.

Changing h from 1 to 2 doubles the volume.
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2 years ago

Read 2 more answers

Simplify the rational expression. State any restrictions on the variable.

natulia [17]

Answer:

t+4, t≠8

Step-by-step explanation:

$\dfrac{t^2-4t-32}{t-8}=\dfrac{(t+4)(t-8)}{(t-8)}=t+4$

The value of t must not be one that makes the denominator zero, hence must not be 8.

8 0

3 years ago

Plz answer!! thanks

jeka94

Answer:

x = 10

y = 40

Step-by-step explanation:

60° + (2x + 7y)° = 180° because these two angles are supplementary

So 2x + y would be equal to 60°

60° + (2x + 7y)° = 180° subtract 60 from both sides

2x + 7y = 120 and

2x + y = 60 multiply second equation by -1 and it will be -2x -y = -60 now add it to first equation

2x + 7y -2x - y = 120 - 60 -2x will eliminate 2x

6y = 60 divide both sides by 6

x = 10

if 2x + y = 60 the we need to replace x with the value we found

2×10 + y = 60

y = 40

4 0

2 years ago