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4 years ago

Can someone help me with these two

Mathematics

1 answer:

weqwewe [10]4 years ago

4 0

7. The ratio is 2 to 1, so the equation would be 2r=c. r is the number of recipes and c is the number of cups.

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Dan spends 1/5 of his wages on rent and 2/3 on food. If he makes £495 per week how much money does he have left

alisha [4.7K]

Answer:

£66

Step-by-step explanation:

1/5 times £495

2/3 times £495

Rent =£99

Food =£330

99+330=429

495-429=£66

I hope that help you and you learned how to do it for next time.

5 0

4 years ago

Read 2 more answers

The values square root of 12 and square root of 15 or put it on the number line what is the approximate difference in tents betw

Murrr4er [49]

Answer:

Square root of 12 = 3.46410161514

Square root of 15 = 3.87298334621

Difference = .3219671948

Step-by-step explanation:

Put it on a number line and that should be ur answer, also plz mark brainliest.

7 0

3 years ago

What is the side length of a square with half the area of a square with area 198?

Murljashka [212]

The square root of 198 is 14, so that is one side of that square. Divide by 2 to get 7 mm. B

6 0

3 years ago

Fiona is trying to prove that a pair of expressions are equivalent by using substitution. Which pair of expressions has the same

Shalnov [3]

Answer:

it is not the first one if that helps at all

Step-by-step explanation:

got it wrong when i put that answer

5 0

3 years ago

Solve log8 12=x-2. Round your answer to four decimal places.

olganol [36]

Answer:

$\large\boxed{x\approx3.1950}$

Step-by-step explanation:

$\log_ab=c\iff a^c=b\\\\\log_812=x-2\iff8^{x-2}=12\\\\(2^3)^{x-2}=4\cdot3\qquad\text{use}\ (a^n)^m=a^{nm}\\\\2^{3(x-2)}=2^2\cdot3\qquad\text{use the distributive property}\\\\2^{3x-6}=2^2\cdot3\qquad\text{divide both sides by}\ 2^2\\\\\dfrac{2^{3x-6}}{2^2}=3\qquad\text{use}\ \dfrac{a^n}{a^m}=a^{n-m}\\\\2^{3x-6-2}=3\\\\2^{3x-8}=3\qquad\text{logarithm of both sides}\\\\\log_22^{3x-8}=\log_23\qquad\text{use}\ \log_aa^n=n\\\\3x-8=\log_23\qquad\text{add 8 to both sides}$

$3x=\log_23+8\qquad\text{divide both sides by 3}\\\\x=\dfrac{\log_23+8}{3}\\\\\log_23\approx1.5849625\\\\x\approx\dfrac{1.5849625+8}{3}\approx3.1950$

4 0

3 years ago