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3 years ago

Plz help I need it badly!!!!!

Mathematics

2 answers:

Annette [7]3 years ago

8 0

She would have saved 30 dollars.

DENIUS [597]3 years ago

7 0

In the first week ( we know it is first week because if it were plural weeks like 'in the first 3 weeks')

so 24 in first week
6-1=5
5 weeks to go

5 weeks times amount gained per week=more
5 times 6=30

30+24=54

she will have saved $54 in 6 weeks

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A taxi ride costs $32. Paulie gives the

igor_vitrenko [27]

Answer:

$36.8

Step-by-step explanation:

to find the total amount, you must do 32 x 115% aka 1.15

32 x 1.15 = 36.8

Therefore $36.8 is the total amount Paulie needed to pay!

5 0

3 years ago

What is the axis of symmetry for the function f(x)=-(x+9)(x-21)

Levart [38]

$\bf \stackrel{f(x)}{0}=-(x+9)(x-21)\implies \begin{cases} 0=-x-9\implies &x=-9\\ 0=x-21\implies &21=x \end{cases} \\\\[-0.35em] ~\dotfill\\\\ \boxed{-9}\rule[0.35em]{8em}{0.25pt}0\rule[0.35em]{5em}{0.25pt}\stackrel{\downarrow }{6}\rule[0.35em]{10em}{0.25pt}\boxed{21}$

now, this parabolic graph, has two zeros/solutions/x-intercepts, at -9 and 21.

for a quadratic equation, the vertex will be right in between the x-intercepts, namely in this case between -9 and 21, right in the middle, namely at 6, and is where the axis of symmetry is at, x = 6.

6 0

3 years ago

Read 2 more answers

$750,000 is what percent of $3,000,000?<br> Please help

velikii [3]

Answer:

Step-by-step explanation:

Solution for 750000 is what percent of 3000000:

750000:3000000*100 =

(750000*100):3000000 =

75000000:3000000 = 25

Now we have: 750000 is what percent of 3000000 = 25

Question: 750000 is what percent of 3000000?

Percentage solution with steps:

Step 1: We make the assumption that 3000000 is 100% since it is our output value.

Step 2: We next represent the value we seek with $x$x.

Step 3: From step 1, it follows that $100\%=3000000$100%=3000000.

Step 4: In the same vein, $x\%=750000$x%=750000.

Step 5: This gives us a pair of simple equations:

$100\%=3000000(1)$100%=3000000(1).

$x\%=750000(2)$x%=750000(2).

Step 6: By simply dividing equation 1 by equation 2 and taking note of the fact that both the LHS

(left hand side) of both equations have the same unit (%); we have

$\frac{100\%}{x\%}=\frac{3000000}{750000}$

100%

x%=

3000000

750000

Step 7: Taking the inverse (or reciprocal) of both sides yields

$\frac{x\%}{100\%}=\frac{750000}{3000000}$

100%=

750000

3000000

$\Rightarrow x=25\%$⇒x=25%

3 0

3 years ago

Which of the following sets of numbers could be the lengths of the sides of a triangle?

dimulka [17.4K]

The sum of the lengths of two shorter sides of a triangle must be greater than the length of the longest side.

$A. \\
8+8\ \textgreater \ 17 \\
16\ \textgreater \ 17 \\ 
false \\ \\
B. \\
2+4\ \textgreater \ 8 \\
6\ \textgreater \ 8 \\
false \\ \\
C. \\
8+16\ \textgreater \ 24 \\
24\ \textgreater \ 24 \\
false \\ \\
D. \\
4+6\ \textgreater \ 8 \\
10\ \textgreater \ 8 \\
true$

The answer is D.

5 0

3 years ago

Read 2 more answers

How do u expand the numbers 612,300

krek1111 [17]

600,00+10,000+2,000+300

5 0

3 years ago

Read 2 more answers