All categories

2 years ago

PLEASE ANSWER FOR LOTS OF POINTS

Mathematics

1 answer:

bekas [8.4K]2 years ago

6 0

Answer:

In Heather's solution to the problem, she wrote and solved an equation.

Her work is:

Step 1: 1.08(x +9.01 +0.98 +5.01) = 21.87

Solving like terms

1.08(x+15}=21.87

dividing both side by 1.08

we get

x+15=21.87/1.08

x+15=20.25

subtracting both side by 13.9198

x=20.25-15

x=5.25

According to correction

;

Option 1st

yes,it is correct.

You might be interested in

Work out the area of the tile.

zzz [600]

Answer:

190 cm²

Step-by-step explanation:

Use the area of a trapezium formula: $\frac{1}{2} (a+b)h$

where a and b are the top and bottom bases, and h is the height.

Therefore,

area = $\frac{1}{2}\times (12+26)\times10$ = 190 cm²

5 0

2 years ago

What is the missing number in the equivalent fraction? 3/4=?/8

barxatty [35]

Answer:

6/8

Step-by-step explanation:

3?4=.75

6/8=.75

3 0

3 years ago

Read 2 more answers

Can someone please help me please

qwelly [4]

Answer:

$1) \dfrac{12+\sqrt{-16}}{4}=\dfrac{12+\sqrt{16i^{2}}}{4}\\\\\\=\dfrac{12+4i}{4}=\dfrac{12}{4}+\dfrac{4i}{4}\\\\\\= 3 + i$

Real part = 3 & imaginary part = 1

2) 4 + 7i - 8 = 4 -8 + 7i

= -4 + 7i

Real part = -4 & imaginary part = 7

$3)\dfrac{\sqrt{9}+\sqrt{-4}}{5}=\dfrac{3+\sqrt{4i^{2}}}{5}\\\\\\=\dfrac{3}{5}+\dfrac{2i}{5}\\\\\\Real \ part = \dfrac{3}{5} \ & \ imaginary \ part = \dfrac{2}{5}$

$4) -2-\sqrt{-25}=-2-\sqrt{25i^{2}}=-2-5i$

Real part = -2 & imaginary part = -5

$5)\dfrac{15-13i}{3}=\dfrac{15}{3}-\dfrac{13i}{3}\\\\\\Real \ part = \dfrac{15}{3} \ & \ imaginary \ part = \dfrac{-13}{3}$

b) 1) 6 + 4i

2) -12+ 5i

3) 5-14i

4 0

2 years ago

What is the range of the quiz grades?

FromTheMoon [43]

Answer:

Step-by-step explanation:

In order to find the range, you have to subtract the smallest number from the largest number. 100 - 75 = 25.

Hope this helped!

4 0

2 years ago

Read 2 more answers

How to find median on a dot plot

nikitadnepr [17]

Answer:

you add all the values up on the dot plot and then you divide that number by how many dots are in the plot and that is your median.

6 0

3 years ago