Solve the following problem using cross-multiplication. Ja’Quin draws a picture of a horse that measures 7 inches by 4 inches. He increases the size of the picture on a photocopier so that its new width is 6 inches. What is the new length of the picture? Round to the nearest tenth.
Responses:
1.5 inches
1.2 inches
10.5 inches
42.0 inches
To solve this problem using cross-multiplication, we set up the following equation:
7/4 = 6/x
Cross-multiplying, we get:
7x = 24
Dividing both sides by 7, we get:
x = 24/7
x ≈ 3.4
Therefore, the new length of the picture is approximately 3.4 inches. Rounded to the nearest tenth, the new length is 3.4 inches.