Mads4695 Mads4695

16-11-2017
Mathematics

contestada

Susan's age is 3 times andrea's age. Barbara is twice as old as andrea. the sum of their ages is 30. how old is each girl?

Respuesta :

jorel1380 jorel1380

16-11-2017

Let a be Andrea's age. Then Susan is 3a, and Barbara is 2a.So:
a+2a+3a=30
6a=30
a=5
Andrea is 5, Susan is 15, and Barbara is 10
☺☺☺☺

Answer Link

ACCESS MORE ACCESS MORE ACCESS MORE ACCESS MORE

Otras preguntas

The initial velocity of a 4.0kg box is 11m/s due west. After the box slides 4.0m horizontally its speed is 1.5 m/s. Determine the magnitude and the direction of

what is the inverse of the function f(x)=2x+1

I am confusion pls help me i am sad help

An individual employee’s job performance is measured as

You are an owner of a bakery, and you meet with other neighborhood bakery owners. Consider that fresh baked goods and processed baked goods are substitutes. In

Which of the following describes the ability of a single gene to have multiple phenotypic effects? A) pleiotropy B) incomplete dominance C) epistasis D) mul

Which of the following is a characteristic of iambic pentameter? A. It has 10 syllables per line. B. It determines the number of lines in a stanza. C. It create

If Samantha wants two bags of chips and a coke,how much should she plan to spend?

Read the passage from A Doll’s House. Nora: Really! Did a big dog run after you? But it didn't bite you? No, dogs don't bite nice little dolly children. You mus

How does bicarbonate (HCO3−) help alleviate heartburn symptoms? A. Bicarbonate solution dilutes the excess stomach acid. B. It has a soothing effect on acid-dam