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the Average of ben’s three tests is 89. Each test is worth 100 points. What score does he have to make on his 4th test to get an average of 90?

Respuesta :

Answer:

93

Step-by-step explanation:

Let's see what kind of equation we can make with this information.

90=((3×89)+x)/4

90×4=267+x

360-267=x=93

We can make this equation work because every test is worth 100 points.

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