All categories

3 years ago

How do you solve 2.25t + 5 = 13.5t + 14?

Mathematics

2 answers:

lys-0071 [83]3 years ago

7 0

Answer:

t=-0.8

Step-by-step explanation:

2.25t+5=13.5t+14

5=13.5t-2.25t+14

5=11.25t+14

11.25t=5-14

11.25t=-9

t=-9/11.25

t=-0.8

lisabon 2012 [21]3 years ago

4 0

Answer:

0.8

Step-by-step explanation:

2.25t+5=13.5t+14

-5 -5

2.25t=13.5t+9

-13.5t -13.5t

-11.25t=9

/11.25 /11.25

t=0.8

You might be interested in

What are the zeros of the function f(x) = 2 + 8x + 4, expressed in simplest radical form?

Yanka [14]

-8x=2+4 x=-4+43, I think -8x moved to left and solve that, its simple.

3 0

3 years ago

Compare the two groups of data. Which statement is true? A) on average test scores for Mr. Scarlet's class and Mrs. Plum's class

Genrish500 [490]

Answer:d

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

For a party, three solid cheese balls with diameters of 2 inches, 4 inches, and 6 inches, respectively, were combined to form a

schepotkina [342]

Answer:

The radius of the new cheese ball formed is approximately 6.603 inches.

Step-by-step explanation:

We are given the following in the question:

Radius of three cheese ball = 2 inches, 4 inches, and 6 inches

They were combined to form a new cheese ball.

Thus, we can write

Volume of three cheese balls = Volume of new cheese ball.

Let r be the radius of new cheese ball.

Volume of sphere =

$\displaystyle\frac{4}{3}\pi r^3$

Putting values, we get:

$\displaystyle\frac{4}{3}\pi r_1^3 + \displaystyle\frac{4}{3}\pi r_2^3 +\displaystyle\frac{4}{3}\pi r_3^3 =\displaystyle\frac{4}{3}\pi r^3\\\\\frac{4}{3}\pi(2^3 + 4^3 + 6^3) = \displaystyle\frac{4}{3}\pi r^3\\\\2^3 + 4^3 + 6^3 = r^3\\\Rightarrow 288 = r^3\\\Rightarrow r = (288)^{\frac{1}{3}}\\\Rightarrow r \approx 6.603$

Thus, the radius of the new cheese ball formed is approximately 6.603 inches.

3 0

3 years ago

40 POINTS is (4,7) a solution of equations? Explain your answer 2x+4y=36 3x-4y=-6

dsp73

2x + 4y = 36
3x - 4y = -6
--------------add
5x = 30
x = 6

2x+4y=36
2(6)+4y=36
12 + 4y = 36
4y = 24
y = 6

answer
(6, 6) is a solution of equations
(4,7) is NOT a solution of equations

6 0

3 years ago

Read 2 more answers

Given that Triangle ABC such that a=8cm, b=7cm and c=9cm tem and c= 9cm find Cos B

charle [14.2K]

Answer:

We use cosine rule also called cosine law which states

c^2=a^2+b^2-2abcosC

given

a=8cm, b=7cm, c=9cm cos C?

9^2=8^+7^2-2*8*7 cos C

expand

81=64+49-112 cos C

like terms together

81-113=-112 cos C

-32=-112cos C

multiply both sides by -1

32=112cos C

divide both sides by 112

32/112=cos C

cosC=0.2857

find cos inverse of 0.2857

angle C= 73.40

4 0

4 years ago