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3 years ago

Substitution 7. 4x+y=3.4 x=4y

Mathematics

1 answer:

Ivanshal [37]3 years ago

8 0

Here is how i solved it hope it helps

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Los angles is about 385 miles from san francisco. how far apart should the city's be on a map with a scale of 1in=1515mil

klasskru [66]

1 inch=1515 miles
X inches= 385 miles
so 1515 is 3.935 times bigger than 385 miles.
meaning that 1 inch is also 3.935 times bigger than X inches.
to find X we just divide 1 by 3.935
which is: 0.254 inches

4 0

3 years ago

Mango farm contains 1250 mango trees. Each tree produces an average of 160 Mango’s during the summer how many such mango forms a

serious [3.7K]

If a farm contains 1250 trees, and each tree produces 160 mangoes, the farm produces

$1250 \times 160 = 200000$

This means that $k$ farms produce $200000k$ mangoes.

If you want 1 million mangoes, you must solve the equation

$200000k = 1000000 \implies k = \cfrac{1000000}{200000} = 5$

So, you need 5 farms.

7 0

3 years ago

URGENT PLEASE ANSWER inverse function *see attachment*

Mila [183]

Answer:

Horizontal shift to the RIGHT of one unit

Step-by-step explanation:

When looking at a square root equation, the transformation form is:

$f(x) = a\sqrt{b(x-h)} +k$

'h' represents a horizontal shift of the graph. Therefore, in this instance:

$f(x) = \sqrt{x-1}$

This means that there is a horizontal shift to the RIGHT of one unit.

4 0

4 years ago

The measure of What is m Enter your answer in the box.

tangare [24]

9514 1404 393

Answer:

46°

Step-by-step explanation:

The angle sum theorem tells you a whole angle is the sum of its parts:

∠AKG = ∠AKD +∠DKG

133° = ∠AKD +87°

46° = ∠AKD . . . . . . . . . . subtract 87°

5 0

3 years ago

The temperature of a pot of water is 50⁰ F. The temperature rises 15⁰ per minute. Write an equation below in y=mx + b form to ex

sergij07 [2.7K]

Answer:

The equation to express this situation is y = 15x + 50.

Step-by-step explanation:

Initially, the temperature of a pot of water is 50⁰, i.e. at after x = 0 minutes the temperature was, y = 50⁰.

And the temperature rises 15⁰ per minute.

So, after x₁ = 5 minutes, the temperature was, y₁ = 125⁰.

And similarly after x₂ = 10 minutes, the temperature was, y₂ = 200⁰.

Compute the equation to express this situation as follows:

$(y-y_{1})=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}\cdot (x-x_{1})\\\\(y-125)=\frac{200-125}{10-5}\times (x-5)\\\\y-125=15x-75\\\\y=15x-50$

Thus, the equation to express this situation is y = 15x + 50.

6 0

3 years ago