All categories

4 years ago

Solve the equation t/2+7=15

Mathematics

2 answers:

r-ruslan [8.4K]4 years ago

8 0

Answer:

15-7=8

8×2=16

t=16

.....

Marina86 [1]4 years ago

6 0

Answer:

t = 16

Step-by-step explanation:

t/2+7=15

Subtract 7 from each side

t/2 +7-7 = 15-7

t/2 = 8

Multiply each side by 2

t/2*2 = 8*2

t = 16

You might be interested in

Help me please someone Thankss

olganol [36]

Answer:

Hope that helps!

Step-by-step explanation:

6 0

3 years ago

The ratio of points scored by 3 boys on a math test is 7: 10: 12. If the sum of their scores is 232 what is the highest score?

trasher [3.6K]

STEP 1) 7x+10x+12x= 232 STEP 2) 29x = 232 STEP 3) divide 232 by 29 STEP 4) x=8 STEP 5) 7 times 8 = 56, 10 times 8 = 80, 12 times 8 = 96. the highest score was a 96

3 0

4 years ago

Please help me ASAP!!!

natka813 [3]

Question:

Solution:

Let the function

$y=f(x)\text{ = }\sqrt[]{x}-9$

Now remember the following rule:

To graph y = f(cx)

if 0 < c < 1 , stretch the graph of y = f(x) horizontally by a factor of 1/c.

Thus, applying this to the given function, with c = 3, we can conclude that the correct answer is:

$y=f(x)\text{ = }\sqrt[]{\frac{1}{3}x}-9$

5 0

1 year ago

Help me with this math plz, I don’t understand it

Tresset [83]

Answer:

the red one

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

2.3.2: Michael Myers predicts that SAT scores predict college graduation rates in a linear fashion. U of M has an average SAT of

AleksAgata [21]

Answer:

$y = \frac{5000r}{3} -50$

Step-by-step explanation:

Represent the SAT score with y and the rate with r.

So, we have:

$(r_1,y_1) = (90\%,1450)$

$(r_2,y_2) = (69.6\%,1110)$

Required

Determine the equation in slope intercept form

First, we calculate the slope

$m =\frac{y_2 - y_1}{r_2 - r_1}$

This gives:

$m =\frac{1110 - 1450}{69.6\% - 90\%}$

$m =\frac{-340}{-20.4\%}$

Convert percentage to decimal

$m =\frac{-340}{-0.204}$

$m =\frac{340}{0.204}$

Multiply by 1000/1000

$m =\frac{340*1000}{0.204*1000}$

$m =\frac{340000}{204}$

$m = \frac{5000}{3}$

The equation is then calculated as:

$y - y_1 = m(r - r_1)$

This gives:

$y - 1450 = \frac{5000}{3}(r - 90\%)$

Open Bracket

$y - 1450 = \frac{5000r}{3} - \frac{5000}{3}*90\%$

Convert percentage to decimal

$y - 1450 = \frac{5000r}{3} - \frac{5000}{3}*0.90$

$y - 1450 = \frac{5000r}{3} - 5000*0.30$

$y - 1450 = \frac{5000r}{3} - 1500$

Make y the subject

$y = \frac{5000r}{3} - 1500+1450$

$y = \frac{5000r}{3} -50$

3 0

3 years ago