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slega [8]
3 years ago
14

-15 POINTS PLS HURRY- Write the ratio as a fraction in simplest form, with whole numbers in the numerator and denominator. 4.5 c

m to 4 cm
Mathematics
2 answers:
makkiz [27]3 years ago
5 0

Hi there! :)

Answer:

\huge\boxed{\frac{9cm}{8cm}}

We can disregard the units temporarily to create a ratio for 4.5 to 4:

4.5 is not a whole number- we can convert this number in the ratio to a whole number by multiplying both numbers by 2:

2 · (4.5 : 4) = 9 : 8

Express as a fraction:

9cm : 8cm = \frac{9cm}{8cm}

SSSSS [86.1K]3 years ago
5 0
The answer is 9cm over 8cm
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Find the area of this composite shape<br> 11 cm<br> "11 cm<br> 18 cm<br> 6.5 cm
posledela

Answer:

166.5 cm squared

Step-by-step explanation:

Multiply 11x11 =121

Multiply 7x6.5 =45.5 (we get the 7 because 18-11=7)

Then we add 121 and 45.5 and get 166.5

3 0
3 years ago
Write the equation of the line that passes through (-6, 0) and is parallel to the line y = 5x - 43​
kupik [55]

Answer:

Step-by-step explanation:

y = 5x - 43.....slope is 5

a parallel line will have the same slope

(-6,0)...x = -6 and y = 0

slope(m) = 5

y = mx + b

0 = 5(-6) + b

0 = -30 + b

30 = b

so ur parallel equation is : y = 5x + 30

7 0
3 years ago
Simplify the expression 10a + 5b + 3 - 25a + 2b - 18 + 3b - 5a pls!!!
Scrat [10]

Answer:

−20a + 10b − 15

Step-by-step explanation:

The expression simplified is: −20a + 10b − 15

hope this helps

8 0
3 years ago
State the coordinates​
natulia [17]

Answer:

The coordinates are: (-3,-4).

7 0
4 years ago
A motorboat goes downstream in river and covers a distance between to coastal towns in 5 hours . It covers this distance upstrea
Radda [10]

Answer:

The speed of the boat in still water is 33 km/h

Step-by-step explanation:

Let us denote the speed of the boat in still water as x km/h.

Thus;

Since the speed of the stream is 3 km/h, then while going downstream, the total speed on the boat would be; (x + 3) km/h

Formula for distance = speed x time

Since we are told that the time taken to cover the distance downstream is 5 hours, then;

Distance covered in 5 hours = 5(x + 3) km

Therefore, distance between A and B is 5(x + 3) km

However, while going upstream the boat will work against the water current.

Therefore, its speed upstream will be (x − 3) km/h.

we are told that the time taken to cover the distance downstream is 6 hours, then;

Distance covered in 6 hours = 6(x − 3) km

Therefore, distance between A and B is 6(x - 3) km

The true distance between A and B has to be the same.

So,

5(x + 3) = 6(x - 3)

This gives;

5x + 15 = 6x - 18

15 + 18 = 6x - 5x

x = 33

Therefore, the speed of the boat in still water is 33 km/h

3 0
3 years ago
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