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1 month ago

Value of expression 6 3/4(-11.5)

Mathematics

1 answer:

Inessa [12.5K]1 month ago

0 0

Answer:

6 * 3/4 = 4.5 = 9/2 = 412

Step-by-step

6 * 3/4 = 6/1 3*4 = 18/4 = 9/2

2 · 2 = 9/2

Both the numerators and denominators are to be multiplied. Retain the resulting fraction with the lowest possible denominator; GCD(18, 4) = 2. In this intermediate calculation, cancelling by the common factor of 2 results in 9

In summary - six times three quarters equals nine halves.

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Nakita rode her skateboard at an average speed of 8.8 feet per second for 0.2 miles. She wants to calculate how long it took her

lawyer [12517]

Answer: $2\ minutes$

Step-by-step explanation:

To determine time "t", we know that:

$d=rt$

Where "d" denotes distance, "r" signifies rate, and "t" means time.

Now isolating the time "t":

$t=\frac{d}{r}$

Initially, we convert miles into feet.

Since $1\ mile=5,280\ feet$ , thus

$d=(0.2\ mi)(\frac{5,280\ ft}{1\ mi})\\\\d=1,056\ ft$

Recognizing that:

$r=8.8\ \frac{ft}{s}$

We substitute these values into $t=\frac{d}{r}$ to find time in seconds:

$t=\frac{1,056\ ft}{8.8\ \frac{ft}{s}}\\\\t=120\ s$

Given:

$1\ minute = 60\ seconds$

The resulting time in minutes is:

$t=(120\ s)(\frac{1\ min}{60\ s})\\\\t=2\ min$

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24 days ago

Evaluate. 58−(14)2=58-142= ________

Zina [12379]

In this scenario, we start with the following expression:

$58- (14) ^ 2$

The first step involves evaluating the quadratic component.

Next, we have:

$58- (14) ^ 2 = 58-196$

The following step is to subtract the two resultant values:

$58- (14) ^ 2 = -138$

It is clear that the outcome of this operation is a negative value.

Answer:

The expression results in:

$58- (14) ^ 2 = -138$

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1 month ago

Evaluate 0.1m+8-12n0.1m+8−12n0, point, 1, m, plus, 8, minus, 12, n when m=30m=30m, equals, 30 and n=\dfrac14n= 4 1 n, equals,

PIT_PIT [12445]

Answer:

Step-by-step explanation:

The task is to evaluate:

0.1m + 8 - 12n

When $m=30, n=\frac{1}{4}$

By substituting these values into the expression, we have:

$0.1m+8-12n=0.1(30)+8-12(\frac{1}{4})\\=3+8-\frac{12}{4}\\=3+8-3\\=8$

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13 days ago

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A frog is sitting exactly in the middle of a board that is five feet long. Every ten seconds he jumps one foot to the left or on

PIT_PIT [12445]

Answer:

Given that the frog jumps every 10 seconds

(using digits from a random number table)

It requires 7 jumps with 2 in the reverse direction (either left or right) for the frog to get off the board in 60 seconds.
Alternatively, 3 jumps in the same direction will also lead to the frog being off the board.
Furthermore, it would take 5 jumps with one in the opposite direction within the time limit of 60 seconds to leave the board.

Step-by-step explanation:

A frog positioned right at the center of a 5ft long board is 2.5 ft away from either edge.

Every 10 seconds, the frog jumps left or right.

If the frog's jumps are LLRLRL, it will remain on the board at the leftmost square.

If it jumps as LLRLL, it will jump off the board after fifty seconds.

Given that the frog jumps every 10 seconds

(using digits from a random number table)

It requires 7 jumps with 2 in reverse direction (either left or right) for the frog to get off the board in 60 seconds.
Alternatively, 3 jumps in the same direction will also lead to the frog being off the board.
Furthermore, it would take 5 jumps with one in the opposite direction within the time limit of 60 seconds to leave the board.

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1 month ago

A Facebook ad targets an audience of 700,000. Narrowing the audience to women reduces the audience by 45%. What is the resulting

Zina [12379]

700,000 * 45%
700,000 *.45 = 315,000
Final audience is 315,000

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28 days ago

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