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3 years ago

When lit, a candle loses 8% of the unlit candle every hour. Janet lit a candle with an

Mathematics

1 answer:

sweet [91]3 years ago

8 0

Answer: 2.5 hours

Step-by-step explanation:

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3. You have a yard that has a width of 5 yd 1 ft and a

faltersainse [42]

Answer:

5:47

Step-by-step explanation:

4 0

3 years ago

Meredith has a recipe that makes 24 cupcakes but she wants to make double batch. The original recipe calls for twice as much flo

pickupchik [31]

Answer:

she would need 2 cups flower for a double batch.

Step-by-step explanation:

Flower = 2x sugar

Sugar = 1/2 cup

Flower = 1 cup (for the original recipe)

then you double it = 2 cups flower

4 0

3 years ago

Please please please help brooo :(((

Agata [3.3K]

Answer:

when the 9x moved to the other side he didnt change the sign

Step-by-step explanation:

-8x +32 = 9x-9

-9x - 8x + 32 = 9

5 0

3 years ago

Phyllis invested 51000 dollars, a portion earning a simple interest rate of 4 percent per year and the rest earning a rate of 7

Liono4ka [1.6K]

Answer:

Phyllis invested $11,000 at a simple interest rate of 7 percent per year and $40,000 at a simple interest rate of 4 percent per year.

Step-by-step explanation:

From the information provided, you can write the following equations:

x+y=51000 (1)

0.04x+0.07y=2370 (2), where

x is the portion earning a simple interest rate of 4 percent per year

y is the portion earning a simple interest rate of 7 percent per year

First, you can isolate x in (1):

x=51000-y (3)

Now, you can replace (3) in (2) and solve for y:

0.04(51000-y)+0.07y=2370

2040-0.04y+0.07y=2370

0.03y=330

y=330/0.03

y=11000

Then, you can replace the value of y in (3) to find the value of x:

x=51000-11000

x=40000

According to this, the answer is that Phyllis invested $11,000 at a simple interest rate of 7 percent per year and $40,000 at a simple interest rate of 4 percent per year.

3 0

3 years ago

Whats the equation for this

yawa3891 [41]

Answer:

$x^2 + y^2 + 4x + 4y = -119/16$

Step-by-step explanation:

The axes x and y are calibrated in 0.25

If the circle is carefully considered, the radius r of the circle is:

r = -1.25 - (-2)

r = 0.75 units

The equation of a circle is given by:

$(x - a)^2 + (y - b)^2 = r^2$

The center of the circle (a, b) = (-2, -2)

Substituting (a, b) = (-2, -2) and r = 0.75 into the given equation:

$(x - (-2))^2 + (y - (-2))^2 = (3/4)^2\\\\(x + 2)^2 + (y + 2)^2 = (3/4)^2\\\\x^2 + 4x + 4 + y^2 + 4y + 4 = 9/16\\\\x^2 + y^2 + 4x + 4y + 8 = 9/16\\\\16x^2 + 16y^2 + 64x + 64y + 128 = 9\\\\16x^2 + 16y^2 + 64x + 64y = -119\\\\x^2 + y^2 + 4x + 4y = -119/16\\$

5 0

3 years ago