2 years ago

Which number makes this sentence true? 32:40=48:x

Mathematics

1 answer:

Sav [38]2 years ago

4 0

Answer:

x=60

Step-by-step explanation:

divid the numbers

multiply all terms by the same value to eliminate fraction denominator

simplify

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The radioactive substance uranium-240 has a half-life of 14 hours. The amount

k0ka [10]

<h2>Answer:</h2>

See analyris

<h2>Step-by-step explanation:</h2>

$Hlug\ in\ the\ value\ of \left.\ t.\right\}$

$The\ infital\ ampunt\ in\ the\ sample:$

$t=0_{-1}\ \ \ \ \ f(t)=39\omega\bullet(\frac{1}{2})^\frac{0}{14}$

$=3900\ g.$

$Ater\ bo\ busis.$

$t=6,\ \ \ \ \ A(t)=2900\times(\frac{1}{2})^\frac{60}{14}$

$=3900\times(\frac{1}{2})^\frac{30}{7}$

$\approx 209.$

<em>I hope this helps you</em>

6 0

2 years ago

Leon took a math quiz last week. He got 39 problems correct and 61 problems incorrect. What percentage did Leon get correct?

NISA [10]

Answer:

61+39=100

39/100*100

=39%

Step-by-step explanation:

3 0

2 years ago

Mathew and Melanie work at their local supermarket located in Brooklyn, New York. They each earn $8 per hour. Mathew worked thre

Liula [17]

Answer:

6 hours

Step-by-step explanation:

To start this, you must use an equation that models the amount that Mathew and Melanie made based on time. The total amount of money earned by the two of them is 120, and they both work for 8 dollars and hour, and Mathew worked 3 more hours, our equation is 120 = 8x +8(x+3)

We must first solve for x

120 = 8x + 8x +24

-24 -24

96 = 16x

x = 6

x is the amount of hours Melane worked.

6 0

2 years ago

Read 2 more answers

Anyone willing to help

zhannawk [14.2K]

The correct answer is a.