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3 years ago

Dan earns £7.80 per hour. How much will he earn for 7 hours work

Mathematics

1 answer:

katen-ka-za [31]3 years ago

6 0

Answer: £54.60

Step-by-step explanation:

7.80 x 7 = £54.60

***If you found my answer helpful, please give me the brainliest. :) ***

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If (2x^ay^b)^3 = 8x^12y^27, find the value of “a” and “b”.

ad-work [718]

a = 4, b= 9. Explanation: Since all of it is to the power of 3, we can divide the exponents to of the results (right side of the equation). 12/3=4, 27/3=9. Hope this helps.

7 0

2 years ago

When two numbers have a sum equal to ___ the numbers are additive inverses example of __ + -9 =0 and 18 + __ = 0

Aliun [14]

Answer: Zero; 9; -18

Step-by-step explanation:

An additive inverse always adds up to zero. 9 is the opposite of -9, and -18 is the opposite of 18

5 0

3 years ago

a zoologist hides in a bush 200 feet away from a tree inhabited by a family of monkeys. if the zoologist is looking up at an ang

Nastasia [14]

Answer:

$\displaystyle 53.6ft$

Step-by-step explanation:

refer the attachment

let the height be h

since we are given the adjacent side and want to figure out opposite side we'll use tan function

so our equation is

$\displaystyle \tan( {15}^{ \circ} ) = \frac{h}{200}$

cross multiplication:

$\displaystyle h = 200\tan( {15}^{ \circ} )$

by using calculator we acquire:

$\displaystyle h \approx 53.6ft$

hence,

about 53.6ft high in the tree ate monkeys

4 0

3 years ago

Passes through (-8, -7), parallel to the graph of y=1/2x-3

KIM [24]

Answer:

$y=\frac12x-3$

The answer is the same line as given in the question.

Step-by-step explanation:

Hello!

Slope-intercept Form: $y = mx + b$

y = output
m = slope
x = input
b = y-intercept

Given our Line: $y=\frac12x-3$

slope = $\frac12$
y-intercept = $3$

Parallel lines have the same slope but a different y-intercept, so the second line should have a slope of $\frac12$ .

To find the y-intercept, we plug in the x and y values from the point into a blank equation with the slope and solve for b.

$y = \frac12x + b$
$-7 =\frac12 (-8) + b$
$-7 = -4 + b$
$-3 = b$

The equation is $y=\frac12x-3$ , hence the same line.

7 0

2 years ago

Help me please i really need it I need solution.

Strike441 [17]

Answer:

30 are present and 10 are absent

Step-by-step explanation:

75% of 40 is 30

Therefore 30 pupils are present

And 10 pupils are absent

8 0

3 years ago

Read 2 more answers