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Ber [7]
3 years ago
7

How do I do these 2 questions

Mathematics
1 answer:
olga nikolaevna [1]3 years ago
3 0

Q10/

6 m/s = 21.6 km/h

6m/s =3.6 × 6 = 21.6 km/h

** 1m/s = 3.6 km /h

1 \frac{m}{s}  =  \frac{1}{1000} km \times  \frac{60s}{1 \: min}  \times  \frac{60 \: min}{ 1\: h}  \\  \\  =  \frac{1}{1000} \times  \frac{3600}{1}  \\  \\   = \frac{3600}{1000}  = 3. 6\: km/h

Q14/

7x -1 =3x+7

7x - 3x = 7 +1

4x =8

x = 8/4

x =2

I hope I helped you^_^

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Step-by-step explanation:

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3 years ago
2:x and 12:18 a-3, b-4, c-6
nirvana33 [79]

The Corrected Problem is :

2:x and 12:18 identify the value of x that makes each pair of ratios equivalent .

Solution:

If a pair of Ratios are equivalent then we can write

\frac{2}{x}=\frac{12}{18}\\ \\ \text{Simplify we get}\\ \\ 12x=36\\ \\ \text{Divide both the sides by 12 we get}\ \\ \\ \frac{12x}{12}=\frac{36}{12}\\ \\  x=3\\ \\ \text{Hence the required value of x is 3}\\

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3 years ago
Read 2 more answers
-2(x - 5) = -14 PLEASEEEEE HELPPPPPP
juin [17]
Okay so you need to start off by using the distributive property, meaning you are going to multiply -2 by both items within the parentheses. this gives you -2x + 10 = -14. from here you want to isolate x, so you’ll subtract both sides by 10 to move it to the other side. this gives you -2x=-24. then you’ll divide both sides by -2 to completely isolate x. this gives you x=12. does that make sense?
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Find the solution of this system of equations.
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Reply with quote<br> {(-1,3),(0,5),(1,7),(2,9)} , identify the domain and range
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