All categories

3 years ago

Write an equation for : one third of a number plus 5 is 8

Mathematics

1 answer:

solong [7]3 years ago

3 0

Hey!!

Question: one third of a number plus 5 is 8

Let the number be X

Answer: 1/3*X+5=8

hope it helps

Good luck on your assignment

You might be interested in

The steamboat River Queen travels at the rate of 30km/h in still water. If it can travel 45 km up stream in the same amount of t

const2013 [10]

$x-the\ rate\ of\ the\ current\\t-time\\\\ \left\{\begin{array}{ccc}(30-x)t=45\\(30+x)t=63\end{array}\right\\ \left\{\begin{array}{ccc}t=\frac{45}{30-x}\\t=\frac{63}{30+x}\end{array}\right\\\\\frac{45}{30-x}=\frac{63}{30+x}\\\\cross\ multiply\\\\63(30-x)=45(30+x)\\1890-63x=1350+45x\\-63x-45x=1350-1890\\-108x=-540\ \ \ \ /:(-108)\\x=5\\\\Answer:The\ rate\ of\ the\ current\ is\ 5\ km/h.$

6 0

3 years ago

Please help me with my math home work

Ket [755]

page 1:

$-\frac{8}{3} m = 6$

$-8m = 6(3)$

$-8m = 18$

$m = \frac{18}{-8}$

$m = -\frac{9}{4}$

$m = -2\frac{1}{4}$

page 2:

$0.8x = 19$

$x = 19/0.8$

$x = 23.75$

$0.12x = 1$

$x = 1/0.12$

$x =$ $\frac{25}{3}$

$x = 8\frac{1}{3}$

3.3(x+4)

3.3x + 13.2

$9-5\:\frac{1}{2}x-3\left(-2x+1\right)$

$9-\frac{11}{2}x-3\left(-2x+1\right)$

$6x-\frac{11}{2}x+9-3$

$x\frac{1}{2}+6$

$\frac{1}{2}x+6$

$2.2(3.1+x)+3x$

$6.82+2.2x+3x$

$6.82+5.2x$

page 3:

3/4 x = 60

x = (60*4)/3

x = 80

2/5 x =42

x = (42*5)/2

x =105

3/5 y = 40

y = (40*5)/3

y = $\frac{200}{3}$

y = $66\frac{2}{3}$

$-\frac{8}{3}m =6$

$m = \frac{6*3}{-8}$

$m = -\frac{9}{4}$

$m = -2\frac{1}{4}$

$\frac{5}{6} x =4$

$x = \frac{4*6}{5}$

$x =4.8$

$\frac{5}{3} x =12$

$x = \frac{12*3}{5}$

$x =7.2$

4 0

3 years ago

Read 2 more answers

Notes on how to multiply/divide with scientific notation

snow_tiger [21]

Answer:

Treat the numbers separately and powers separately.

Multiply the two results at the end.

Example:

(2×10⁵) ÷ (4×10²)

(2 ÷ 4) × (10⁵ ÷ 10²)

0.5 × 10³

5.0 × 10²

3 0

3 years ago

1) Which multiplication expression is equivalent to -8 + (-8) + (-8) + (-8)?

Dvinal [7]

Answer:

-8 x 4

Step-by-step explanation:

Multiplication is really just repeated addition. In multiplication, the 2 terms are the number being added and the number of times it is added. In this case, the number being added is -8 and it is being added 4 times. Therefore, the multiplication expression must be -8 x 4.

3 0

3 years ago

Read 2 more answers

Can someone help me with this please ?

Natali5045456 [20]

Answer:

87 is the anwser

Step-by-step explanation:

Can i have brainlyest pls

6 0

3 years ago