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REY [17]
3 years ago
12

Can someone help with this question

Mathematics
1 answer:
Zielflug [23.3K]3 years ago
6 0

Answer:

<1= 60

<2=120

<3=60

<4=60

<5=120

<6=120

<7=60

Step-by-step explanation:

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7.
saveliy_v [14]

Answer:

<h2>$ 30.8</h2><h2></h2>

Step-by-step explanation:

ratio and proportion:

<u>3 tickets</u>  = <u> 7 tickets </u>

$13.20            x

then cross multiply:  3 (x) = 13.20 (7)

simplify: 3x = 92.4

solve for x = 92.4 / 3

x = $ 30.8

therefore,

7 tickets costs $ 30.8

7 0
3 years ago
if you wake up at 7 am and it takes you an hour and 30 minutes to get ready what time will you leave home
Elenna [48]
8:30 AM is when you leave home.
4 0
3 years ago
Read 2 more answers
I don't understand 13?! Plz help
KiRa [710]
0.07 and 0.3 the fraction would be 7\100 and 3\10
7 0
4 years ago
{(-3, 7.5) , (-2, 10) , (-1, 12.5)} arithmetic or geomatic
marysya [2.9K]

Answer:

arithmetic

Step-by-step explanation:

The points fall on a straight line. They won't do that for a geometric sequence.

___

Normally the terms of either sort of sequence are numbered with counting numbers: 1, 2, 3, .... Your x-values are negative, so are obviously not term numbers of a sequence. The differences of x-values are 1, and the differences of y-values are 2.5, so we know the x- and y-values are linearly related. That relationship can be expressed in point-slope form by ...

y = 2.5(x +1) +12.5

which can be simplified to

y = 2.5x +15

__

The arithmetic sequence with first term 17.5 and common difference 2.5 would be described by this same equation.

4 0
3 years ago
Bismuth-210 is an isotope that radioactively decays by about 13% each day, meaning 13% of the remaining Bismuth-210 transforms i
Luden [163]

Answer:

Approximately 76.5 mg.

Step-by-step explanation:

Given,

The initial quantity of the Bismuth-210, P = 233 mg,

Also, the rate of decay per day, r = 13 %

Thus, the quantity of the Bismuth-210 after 8 days would be,

A=P(1-\frac{r}{100})^8

=233(1-\frac{13}{100})^8

=233(1-0.13)^8

=233(0.87)^8

=76.4733194697

\approx 76.5\text{ mg}

3 0
3 years ago
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