A. 21
Girls
B. 16
c. 12
Total
Answer:
16 girls
Step-by-step explanation:
there are 4 out of 7 girls in the class.
28/7=4 (this is the unite rate per group number)
4 x 4 =16
Step-by-step explanation:
So 4:3 means for 4 girls there are 3 boys. In total, that would be 7.
So, we divide 28 by 7 for 4 meaning 1 in the 4:3 is 4.
And since we are dealing with girls, 4*4=16
To check, 4*3=12 Boys and 16+12=28
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The first box is 3 more than the quotient of 6 and a number, the second is 6 less than the product of 3 and a number, the third box is the product of 6 and the sum of a number and 3.
Answer:
1= 6 divided by a number times 3
2=6 less than the product of 3 and a number
3=the product of 6 and the sum of a number and 3
Step-by-step explanation:
Answer:66.5
Step-by-step explanation:
Answer:
Step-by-step explanation:
The trigonometric form of complex numbers is when the complex number is in polar form.
This is given by
where the modulus r is given by
and the argument is given by
The trigonometric form then becomes:
Setting up a proportional relationship between mirror and lamppost, the height of the lamppost is 10 feets.
Setting up a proportional relationship :
Cross multiply :
Hl × 3 = 6 × 5
3Hl = 30
Hl = (30 ÷ 3)
Hl = 10
Therefore, the height of the lamppost is 10 feets.
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Answer: 10 feet
Step-by-step explanation:
Let h be the height of lamppost.
Since both the person and the lamppost are standing vertical to the ground, making similar right triangles.
Because the two triangles are similar, the ratio of their sides is the same.
Therefore, we have
Hence, the height of the lamppost = 10 feet.