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elixir [45]
3 years ago
8

4x+5t = 225x - t = 13 what is x and t ​

Mathematics
1 answer:
Anton [14]3 years ago
5 0

Answer:

5(5x-t)

=13×5

25x - 5t

=65

25x -5t + 4x +5t

=65 + 22

29x

= 87

x

= 87÷29

x =3

substituting x=3 in 5x-t=13

15- t

=13

15 - 13

= t

t = 2

Step-by-step explanation:

You might be interested in
If anyone could help?
Trava [24]

Answer:

y=\frac{5}{7}x and y=\frac{7}{9}x

Step-by-step explanation:

A simple way to solve this problem is to plug the corresponding x and y into the function. We need only one pair since all the functions are quasi-linear (y=kx) and the increase is proportional.

In y=\frac{5}{7}x when x=3, y=15/4≈2.14

In y=\frac{3}{5}x when x=3, y=1.8

In y=\frac{7}{9}x when x=3, y≈2.33

In y=\frac{7}{11}x when x=3, y≈1.90

We can observe that in two cases, y=\frac{5}{7}x and y=\frac{7}{9}x, y is greater than 2.


5 0
3 years ago
If m∠A = 56°, m∠B = 60°, and c = 8, what is the measure of side length b?
Alekssandra [29.7K]

Using the law of sines:

\frac{b}{sin(B)}=\frac{c}{sin(C)}

Solve for b:

\begin{gathered} b=\frac{c\cdot sin(B)}{sin(C)} \\ so: \\ b=\frac{8\cdot sin(60)}{sin(64)} \\ b\approx7.708 \end{gathered}

Answer:

7.708

5 0
1 year ago
How many years will it take for an investment of $1000 to $2500 if it earns 6% compounded monthly?
Alex787 [66]
P+prt
1000+1000(.06)x=2500
X=25
25 years
6 0
4 years ago
6 customers entered a store over the course of 18 minutes. At what rate were the customers entering the store in customers per m
alexandr1967 [171]

Answer:

3 minutes

Step-by-step explanation:

18 divided by 6 = 3 minutes

Hope this helps :)

7 0
3 years ago
MULTIPLE CHOICE
Yanka [14]
Divide each term in the numerator by the denominator...

2xy^2-1
6 0
3 years ago
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