3 years ago

You collect a total of $80 in donations from three people. The three donations are in the ratio 3 : 3 : 10.

1 answer:

7 0

<span>ratio 3 : 3 : 10
3+3+10 = 16

80/16 = 5

so 3* 5 = 15
10*5 =50

</span><span>ratio 3 : 3 : 10 = 15 : 15 : 50</span>

You might be interested in

14.7x11.361 how do I solve this problem?

horrorfan [7]

167.0067 is the correct answer

8 0

3 years ago

Please help! Will mark brainliest

ser-zykov [4K]

Answer:

Step-by-step explanation:

t1 = a1

t2 = a1 + d

t3 = a1 + 2d

The sum is t1 + t2 + t3 = a1 + a1 + d + a1 + 2d = 3a1 + 3d

Second question

t1 = a1

t2 = a1 + d

t3 = a1 + 2d

t4 = a1 + 3d

...

tn = a1 + (n - 1)*d

Sum = (a1 + a1 + (n- 1)*d) * n / 2

Sum = (2a1 + nd - d) * n / 2

Sum = (2a1*n + n^2*d - nd) / 2

5 0

3 years ago

Find the area of a triangle with vertices of A(3, 3), B(5, 4), and C(0, 2).

Butoxors [25]

$A(x_A;\ y_A);\ B(x_B;\ y_B);\ C(x_C;\ y_C)\\\\A_\Delta=\frac{1}{2}| \left|\begin{array}{ccc}x_B-x_A&y_B-y_A\\x_C-x_A&y_C-y_A\end{array}\right||\\=================================\\A(3;\ 3);\ B(5;\ 4);\ C(0;\ 2)\\\\A_\Delta=\frac{1}{2}| \left|\begin{array}{ccc}5-3&4-3\\0-3&2-3=\end{array}\right||=\frac{1}{2}|\left|\begin{array}{ccc}2&1\\-3&-1\end{array}\right||\\\\\\=\frac{1}{2}|2(-1)-1(-3)|=\frac{1}{2}|-2+3|=\frac{1}{2}|1|=\frac{1}{2}\ (u^2)$

7 0

3 years ago

0.0023 + 65

stepladder [879]

65 would be your answer.

5 0

1 year ago

Read 2 more answers

A passenger on a bus walks towards the back of the bus at 3.0 km/h relative to the bus, while the bus travels south at 15 km/h.

liq [111]

The correct answer is E

7 0

4 years ago