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Step2247 [10]
3 years ago
7

Math short answer help!!!? Dakota's math test grade was 7 points less than his science test grade . the sum of the grades was 18

3% what did Dakota get on his math test??
Mathematics
2 answers:
cricket20 [7]3 years ago
6 0
<span>Math short answer help!!!? Dakota's math test grade was 7 points less than his science test grade . the sum of the grades was 183% what did Dakota get on his math test??
88%</span>
Luba_88 [7]3 years ago
3 0

Answer:  Dakota scored 88% in math test.

Step-by-step explanation:  Given that Dakota's math test grade was 7 points less than his science test grade and the sum of the grades in both the grades was 183%.

We are to find the grades that Dakota got in his math test.

Let x% and y% be the grades scored by Dakota in math and science respectively.

Then, according to the given information, we have

x=y-7~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(i)

and

x+y=183\\\\\Rightarrow (y-7)+y=183~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~[\textup{Uisng equation (i)}]\\\\\Rightarrow 2y-7=183\\\\\Rightarrow 2y=183+7\\\\\Rightarrow 2y=189\\\\\Rightarrow y=\dfrac{190}{2}\\\\\Rightarrow y=95.

From equation (i), we get

x=95-7=88.

Thus, Dakota scored 88% in math test.

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