chiiling321 chiiling321

15-11-2016
Mathematics

contestada

a A teacher had 56 red pens. if the ratio of red pens to blue pens she owned was 7:5 how many pens did she have total

Respuesta :

hasanahmad368 hasanahmad368

19-11-2016

56;/7=8
8x5=40
56:40
56 + 40= 96
she has 96 pens in total

Answer Link

Otras preguntas

what is the purpose of ziggurats and pyramids??? please hurry i need help

Imagine you are digging a hole to the center of the earth. In which order would dig through them? inner core, outer core, upper mantle, lower mantle, crust c

Find a set of scalar parametric equations for the line formed by the two intersecting planes. 3x+3y+2z+2=0 2x−3y+2z−2=0

Decide what number must be added to the binomial to make a perfect square trinomial.

A couple has three children. Suppose you know that at least two of the kids are boys. What's the probability that all of the kids are boys?

The width of a rectangle is 5 centimeters less than triple the length. Let m be length of the rectangle. Write a variable expression for the width.

sq bisects angle RST, and m ankle RSQ = 2x-4. write an expression for candle RST

The product of some negative number and 4 less than twice that number is 336. Find the number.

Find the sum of 7a^3 + 14a +12 and -6a^3 +12a^2 -7

let f (x)=x-2 and g(x)=x to the second power -7x-9.find f (g(-1))