taniyaboo143 taniyaboo143
  • 28-01-2021
  • Mathematics
contestada

The ratio of grade 7's to grade 8's is 5:3. If there
are a total of 90 grade 8's, how many total
students are there in grade 7 and 8?

Respuesta :

devishri1977
devishri1977 devishri1977
  • 28-01-2021

Answer:

240 students

Step-by-step explanation:

Grade 7 : Grade 8 = 5 : 3

Number of seventh grade students = 5x

Number of Eighth grade students = 3x

3x = 90

x = 90÷3

x = 30

Total students = 5x + 3x = 8x = 8 * 30 = 240

Answer Link

Otras preguntas

is the paramecium a prokaryote or a eukaryote
Martin is making a model of a Native American canoe.he has 51/2 feet of wood .he ises2 3/4 feet for the hull and 1 1/4 feet for the paddles and struts how much
What defines government power and establishes the basic structure of government?
Which statements accurately describe the Persian Wars? Choose all answers that are correct. A. The Athenians relied on their navy to defeat Xerxes. B. The Greek
Six rectangles each with a common base width of 22 have lengths of 1,4,9,16,251,4,9,16,25, and 3636. What is the sum of the areas of the six rectangles?
salt marsh, prohibited,hover.inhumane defintions and synonym
4 times the sum of 14 and 16
on 34 acres of land; there are a total of 8,942 tees.If the trees are spread out evenly, how many trees are on each acre if land?
A 1350 kg car travels at 12 m/s. What is it's kinetic energy
What step should you take before you write your thesis? A. identify your audience B. write your rough draft C. draft a works cited page D. proofread your w