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2 years ago

Ella uses 3 inches of ribbon for each key chain she makes. How many key chains can she make with 4 yards of ribbon?

Mathematics

1 answer:

Marina CMI [18]2 years ago

8 0

Answer:

Step-by-step explanation:

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A flowerpot has a circular base with a diameter of 27 centimeters. Find the circumference of the base of the flowerpot. Round to

ValentinkaMS [17]

Answer:

84.82cm :}

Step-by-step explanation:

4 0

2 years ago

PLEASE ANSWER WITH ALL THE MATH

Colt1911 [192]

9514 1404 393

Answer:

Jacob: 4
his mother: 39

Step-by-step explanation:

Let J and M represent the current ages of Jacob and his Mother.

<u>currently</u>:

M = 3 +9J

<u>in 11 years</u>:

M+11 = 5 +3(J+11)

Using the first equation to substitute for M in the second, we have ...

(3 +9J) +11 = 5 +3(J +11) . . . . . substitute for M

9J +14 = 3J +38 . . . . . . simplify

6J + 24 . . . . . . . . . . subtract 3J+14

J = 4 . . . . . . . . . . divide by 6

M = 3 +9(4) = 39

Jacob is 4 and his mother is 39.

8 0

2 years ago

Solve the equation using the quadratic formula : x^2-10x+25=18

Sever21 [200]

$x^2-10x+25=18 \\ \\x^2-10x+25-18 = 0\\ \\ x^2-10x+ 7 =0 \\ \\a=1 , b = -10 , c= 7 \\ \\ \Delta = b^{2}-4ac = (-10)^{2}-4*1*7=100-28 = 72 \\ \\\sqrt{\Delta }=\sqrt{72}= \sqrt{2*36} =\sqrt{36}*\sqrt{2} =6\sqrt{2}$

$x_{1}=\frac{-b-\sqrt{\Delta }}{2a} =\frac{10- 6\sqrt{2}}{2}=\frac{2(5-3\sqrt{2})}{2}= 5-3\sqrt{2}\\ \\x_{2}=\frac{-b+\sqrt{\Delta }}{2a} =\frac{10+ 6\sqrt{2}}{2}=\frac{2(5+3\sqrt{2})}{2}= 5+3\sqrt{2}$

$Answer : \ x= 5-3\sqrt{2} \ \ or \ \ x = 5+3\sqrt{2}$

8 0

2 years ago

A ski area has a high-speed lift that can move 2,400 skiers to the top of the mountain each hour. Write an expression describing

mihalych1998 [28]

Answer:

2,400h

Step-by-step explanation:

You multiply the amount of skiers per hour (2,400) by the amount of hours (h).

7 0

2 years ago

Solve 2|4w−1|=3|4w+2|.

alexandr1967 [171]

-2(4w-1)=3(4w+2)
-8w+2=12w+6
-20w=4
w=-0.2

5 0

2 years ago