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2 years ago

Hi please help me fast

Mathematics

1 answer:

tekilochka [14]2 years ago

4 0

Answer:

vertex U is the correct answer

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The price of a car increased by 7% which expression can be used to calculate the new price of the car

julsineya [31]

Answer: P * ( 1 + 7%)

Step-by-step explanation:

You included no options but the expression should go something like this:

Pn = P * ( 1 + 7%)

Where Pn is the new price

P is the current price

The above formula will show the new price given the current price.

6 0

3 years ago

Solve each equation. Record your work and check your solution. a. 5(x-2)+(-9)= -7(1-x)

Daniel [21]

The solution for equation is x = -6

Solution:

Given equation is:

$5(x-2) + (-9) = -7(1-x)$

We have to solve the equation

According to Bodmas rule, if an expression contains brackets ((), {}, []) we have to first solve or simplify the bracket followed by of (powers and roots etc.), then division, multiplication, addition and subtraction from left to right

Therefore, solve for brackets in given equation

$5(x-2) + (-9) = -7(1-x)\\\\5x - 10 -9 = -7 + 7x$

Solve for terms in left hand side of equation

$5x - 19 = -7+7x$

Move the variables to one side and constants to other side

$7x -5x = -19+7\\\\2x = -12\\\\Divide\ both\ sides\ by\ 2\\\\x = -6$

Thus the solution for equation is x = -6

8 0

3 years ago

Can someone help me please!!?? Eleven and seven-hundredths added to four and twenty-five hundredth the sum is

zloy xaker [14]

Answer:

$15.32$

Step-by-step explanation:

Eleven and seven-hundredths $=11+\frac{7}{100}$

(Here, $\frac{1}{100}$ denotes the hundredth)

Four and twenty-five hundredth $=4+\frac{25}{100}$

Therefore,

Sum of Eleven and seven-hundredths added to four and twenty-five hundredth = $11+\frac{7}{100}+4+\frac{25}{100}$

$=15+\frac{32}{100}$

$=15+0.32$

$=15.32$

8 0

2 years ago

You randomly choose a marble from a jar. The jar contains 3 red marbles, 10

GrogVix [38]

Total marbles=3+10+8+4=25 marbles total
10 blue marbles/25 total marbles
10/25=2/5 probability

7 0

3 years ago

The organizers of a 5k race surveyed runners about their finishing times (f) and the number of previous races they had run (n).

Rzqust [24]

Let's interpret this equation. If we have that a runner has 0 races under his belt, he completes the race in 38.1 min. We have that the slope is -1.2 min/race and the intercept at n=0 is 38.1 min. Hence, for every race, the duration of the run decreases by 1.2 min (or increases by -1.2 min).
Lets derive that. Suppose a runner that has run n races, runs once more.
The difference of times is:
(-1.2(n+1)+38.1)-(-1.2n+38.1)=-1.2(n+1)-(-1.2n)= -1.2n-1.2+1.2n=1.2 minutes.
Hence, the correct answer is the first.

5 0

3 years ago

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