All categories

4 years ago

Fatima highlighted columns 3 and 8 in the multiplication table below to find equivalent ratios.

Mathematics

1 answer:

Luba_88 [7]4 years ago

7 0

Answer:

the answer is 40:15

Step-by-step explanation:

You might be interested in

Determine the equation of the graph.

ruslelena [56]

Answer: C

y=-5cos(x) is the graphed equation. Cos(x) starts at (0,0) and one period is 2pi or 6.28 and by cos(x) multiplied by -5 starts the cosine wave at (0,-5) and thus corresponds to the graphed equation shown.

Any questions please feel free to ask. Thanks

6 0

3 years ago

9. Sonia bought 5 shirts that cost $38.00 each. If the tax rate is 8.5%, how much did Sonia pay?

qaws [65]

The answer is A

8.5% sales tax + 38.00= $41.23 x 5 (shirts)= $206.15

8 0

3 years ago

What is the nth term?

kumpel [21]

Let $a_k$ denote the kth term of the sequence. Then

$a_k=a_1+d(k-1)$

where d is the common difference between consecutive terms in the sequence and a₁ is the first term.

The sum of the first n terms is

$S_n=\displaystyle\sum_{k=1}^na_k=a_1+a_2+\cdots+a_{n-1}+a_n$

From the formula for $a_k$ , we get

$S_n=\displaystyle\sum_{k=1}^n(a_1+d(k-1))=a_1\sum_{k=1}^n1+d\sum_{k=1}^n(k-1)$

$S_n=\displaystyle na_1+d\sum_{k=0}^{n-1}k$

$S_n=na_1+\dfrac{d(n-1)n}2$

$S_n=\dfrac n2(2a_1-d+dn)$

So we have $d=-5$ , and $2a_1-d=16$ so that $a_1=\frac{11}2$ .

Then the nth term in the sequence is

$a_n=\dfrac{11}2-5(n-1)=\boxed{\dfrac{21-10n}2}$

7 0

4 years ago

Need Help Rn!!!

fgiga [73]

It would be 5850 hope you get it right:)

7 0

3 years ago

A plant grows 3 centimeters in 10 days. How much does it grow per day? Write your answer as a fraction in simplest form.

iogann1982 [59]

Answer:

It grows 0.3 cm per day.

Step-by-step explanation:

Divide 3cm by the 10 days. [ 3 / 10 = 0.3 ]

6 0

3 years ago

Read 2 more answers