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2 years ago

PLEASE HELP I NEED THIS QUICK IM SO STUCK.

Mathematics

1 answer:

Katyanochek1 [597]2 years ago

6 0

Answer:

i think its A.

Step-by-step explanation:

y=5x is telling you that every hour, john jogs 5 miles, for example to solve for miles jogged in 3 hours for John you would use y=5(3), which is 15. If you graph John's equation, you would notice the point (1, 5), and on Tyrones graph, you see (1, 6) . 6 is one more than 5. not sureif that makes sense!

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Please Complete 1,2,3,4.

sveticcg [70]

Answer:

hello

Step-by-step explanation:

it's me

6 0

3 years ago

A recipe for a blueberry dessert requires 5 cups of fresh blueberries for every 312cups of whipped cream. At this rate, how much

lozanna [386]

Answer:

A 5:3

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

Find the number of terms, n, in the arithmetic series whose first term is 13, the common difference is 7, and the sum is 2613.

siniylev [52]

Answer:

Step-by-step explanation:

Recall that the sum of an arithmetic series is given by:

$\displaystyle S = \frac{n}{2}\left(a + x_n\right)$

Where n is the number of terms, a is the first term, and x_n is the last term.

We know that the initial term a is 13, the common difference is 7, and the total sum is 2613. Since we want to find the number of terms, we want to find n.

First, find the last term. Recall that the direct formula for an arithmetic sequence is given by:

$x_n=a+d(n-1)$

Since the initial term is 13 and the common difference is 7:

$x_n=13+7(n-1)$

Substitute:

$\displaystyle S = \frac{n}{2}\left(a + (13+7(n-1)\right)$

We are given that the initial term is 13 and the sum is 2613. Substitute:

$\displaystyle (2613)=\frac{n}{2}((13)+(13+7(n-1)))$

Solve for n. Multiply both sides by two and combine like terms:

$5226 = n(26+7(n-1))$

Distribute:

$5226 = n (26+7n-7)$

Simplify:

$5226 = 7n^2+19n$

Isolate the equation:

$7n^2+19n-5226=0$

We can use the quadratic formula:

$\displaystyle x = \frac{-b\pm\sqrt{b^2-4ac}}{2a}$

In this case, a = 7, b = 19, and c = -5226. Substitute:

$\displaystyle x =\frac{-(19)\pm\sqrt{(19)^2-4(7)(-5226)}}{2(7)}$

Evaluate:

$\displaystyle x = \frac{-19\pm\sqrt{146689}}{14} = \frac{-19\pm 383}{14}$

Evaluate for each case:

$\displaystyle x _ 1 = \frac{-19+383}{14} = 26\text{ or } x _ 2 = \frac{-19-383}{14}=-\frac{201}{7}$

We can ignore the second solution since it is negative and non-natural.

Therefore, there are 26 terms in the arithmetic series.

Our answer is A.

6 0

2 years ago

2x - y = 3 y = -x What’s the value of x?

zlopas [31]

Answer:

These are simultaneous equations.They have to be solved like this:

2x-y=3 -y=3-2x 2x-3= -x

y= -x y= -(3-2x) 3x= 3

y=2x-3 x=1

Step-by-step explanation:

The value of x equals to 1

3 0

3 years ago

Read 2 more answers

Suppose that a scuba diver is currently 34 feet below sea level. If he descends at a rate of 2 feet per minute, in how many minu

siniylev [52]

-126 = -34 + 2x is the equation you would use. solve for x, which would be -46. it would take 46 minutes for the diver to reach 126 feet below sea level.

7 0

3 years ago

PLEASE HELP I NEED THIS QUICK IM SO STUCK.​

PLEASE HELP I NEED THIS QUICK IM SO STUCK.