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ddd [48]
2 years ago
13

Solve the system of equations. 5y - 4x = -7 2y + 4r = 14

Mathematics
1 answer:
GuDViN [60]2 years ago
5 0

Answer:g=65

Step-by-step explanation:

G=65

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What should be done first to evaluate the expression?<br> 6+8+ 4+ (4 x 5)2
mars1129 [50]

Answer: 40x+18

Step-by-step explanation:

4 0
3 years ago
In a coastal town, the humidity, measured in grams of water per kilogram of air, increases by 43% for every 1 degree celsius inc
larisa86 [58]

Answer:

In order to increase humidity by 49.17 grams per kilogram, the increase in temperature will be 18 degree Celsius approx.

Step-by-step explanation:

Initial humidity = 5.75 g/kg

Final humidity= 49.17 g/kg

Percentage increase in humidity= (49.17-5.75)/5.75 *100= 755.13

Increase in temperature= 755.13/43 = 17.56

Increase in temperature = 18 degree Celsius approx.

4 0
3 years ago
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Tela A: Compro $/720 de mercancía y le realizaron el 12% de descuento. ¿Cuanto dinero pagó María por la tela A?
Margaret [11]

Answer:

the amount that need to be paid by her is $633.60

Step-by-step explanation:

The computation of the amount that need to be paid by her is shown below:

= Purchase value of merchandise - purchase value fo merchandise × discount rate

= $720 - $720 × 12%

= $720 - $86.4

= $633.60

hence, the amount that need to be paid by her is $633.60

4 0
3 years ago
Charlie reads quickly. He reads 1\dfrac371 7 3 ​ 1, start fraction, 3, divided by, 7, end fraction pages every \dfrac23 3 2 ​ st
OLEGan [10]
<h2>Answer:</h2>

The number of pages he will read in one minute is:

        2\dfrac{1}{7}\ \text{pages}

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

It is given that:

Charlie reads 1\dfrac{3}{7}\ \text{pages} in every \dfrac{2}{3}\ \text{minutes}.

We know that:

1\dfrac{3}{7}=\dfrac{10}{7}

This means that:

Charlie reads \dfrac{10}{7}\ \text{pages} in every \dfrac{2}{3}\ \text{minutes}.

This means that:

\text{In}\ \dfrac{2}{3}\ \text{minutes he reads}\ \dfrac{10}{7}\ \text{pages}\\\\\text{Hence}

\text{In}\ 1\ \text{minute he will read}\ \dfrac{\dfrac{10}{7}}{\dfrac{2}{3}}\ \text{pages}

\text{In}\ 1\ \text{minute he will read}\ \dfrac{10\times 3}{7\times 2}\ \text{pages}

Hence,

\text{In}\ 1\ \text{minute he will read}\ \dfrac{15}{7}\ \text{pages}

Hence,

\text{In}\ 1\ \text{minute he will read}\ \dfrac{15}{7}\ \text{pages}

\text{In}\ 1\ \text{minute he will read}\ 2\dfrac{1}{7}\ \text{pages}

4 0
3 years ago
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The ratio x : y is equal to 2 : 5y.<br> Work out the value of x.
faust18 [17]

Answer:

2/5

Step-by-step explanation:

x/y = 2/5y

or, x= 2/5

3 0
3 years ago
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