2 years ago

Josh will take 10 tests in 5 weeks at school. How many tests will he have taken after 7 weeks?

Mathematics

2 answers:

xz_007 [3.2K]2 years ago

8 0

14 would be you answer
Hope this helps ^-^

Verdich [7]2 years ago

7 0

Josh will take 14 tests

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For any clarification, Please contact me in the comment section :)

I Hope It Helps .

Step-by-step explanation:

$Let -the-unkonown- numbers-be-x-and-y \\x-y = 1 (1)\\xy = 132 (2)\\Make-x-subject-of-formula-in-equation1 \\x = 1+y\\Substitute , 1+y for- x -in -equation ,2\\y(1+y) = 132\\y + y^{2} =132\\y^{2} +y-132=0\\Solve- the-quadratic-equation.\\y = 11\\substitute- 11 -for- y- in- equation -1- 0r- 2\\x -y = 1\\x-11 = 1\\x = 1+11\\x = 12$

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