josiahsylvers236 josiahsylvers236

24-01-2020
Mathematics

contestada

3.
"a varies directly with b". If a = 4 when b = 21, find a when b-7.

Respuesta :

mosunmolaajagbe mosunmolaajagbe

27-01-2020

Step-by-step explanation:

A(promotional sign)b

A=kb

4=21k

K=0. 1904

A=0. 2b

A=0. 2×7

A=1. 4

Answer Link

josshyaby josshyaby

27-01-2020

:

Step-by-step explanation:

a varies directly with b

a ∞ b

a = Kb

K is the constant of proportionality

If a = 4 when b = 21

4 = 21×k

4 = 21k

k = 4/21

: - a = 4b/21

find a when b= 7.

a = 4(7)/21

a = 4/3

a = 1 1/3

Answer Link

Otras preguntas

Read the passage from the opinion of the court in dred scott v. sandford, written by justice taney. the question before us is, whether the class of persons des

identify the lewis acid in the following reaction: hg2+(aq)+4cn−(aq)⇌hg(cn)42−(aq) a. hg2+ b. cn− c. hg(cn)42−

all of the following individuals would be allowed to effect transactions in the account of a customer who is mentally incapacitated except a(n): a individual na

Read the text and decide whether the following sentences are True (T), False (F) or Not given (NG). 1. Physical items with songs or movies on them have been out

in how many ways can two representatives be picked so that one is a mathematics major and the other is a computer science major?

Find the measure of ∠QTS. Image posted !! Please help giving brainliest for whoever gets it right

the employees of home depot are experienced craftspeople who enjoy giving their customers advice about do-it-yourself projects. the employees' advice increases

President Roosevelt believed that having a canal through Central America would save time and money for commercial and military shipping and answer choices - was

Describe the Vertex Form of a Quadratic equation in words.

Which one of the following statements would make it possible to use math.pi for the value of pi. using python code a. from math import pi b. from math import *