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Masteriza [31]
2 years ago
7

I am verry stuck pls help

Mathematics
1 answer:
Murljashka [212]2 years ago
8 0

Answer:

408.75

Step-by-step explanation:

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Sally and Eddy had a total of $580 after spending $80 and eddy had 240 left how much money does Sally have?​
levacccp [35]

Answer:

260

Step-by-step explanation:

8 0
3 years ago
The Royal Fruit Company produces two types of fruit drinks. The first type is 60% pure fruit juice, and the second type is 85% p
elena-s [515]
Make 2 equations from the question first
x is the number of pints for type 1
y is the number of pints for type 2

The equation
x + y = 120
60% x + 85% y = 65% (x + y)

Solve the equation
From the 2nd equation
0.6x + 0.85y = 0.65(x + y)
0.6x + 0.85y = 0.65x + 0.65y
0.85y - 0.65y = 0.65x - 0.6x
0.2y = 0.05x
y = 4x

From the 1st equation
x + y = 120
x + 4x = 120
5x = 120
x = 24

y = 4x
y = 96

The first type should be 24 pints, the second type should be 96 pints
5 0
3 years ago
Solve. x 2 /7
kolezko [41]

The answer is D I think

4 0
2 years ago
Read 2 more answers
Pls solve.. URGENT!!! Will give brainliest.<br>EXPLAIN IN STEPS<br><br>links will be reported
strojnjashka [21]

▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪

Length of each side of each of these three equilateral triangle is :

  • 1.5 \:  \: cm

Solution is in attachment ~

8 0
2 years ago
A programmer plans to develop a new software system. In planning for the operating system that he will​ use, he needs to estimat
Contact [7]

Answer:  a. n= 1068

b. n= 164

Step-by-step explanation:

The formula to find the sample size :

n=p(1-p)(\dfrac{z^{*}}{E})^2

, where p=prior population proportion , z* = critical z-value and E = Margin of error.

Here , let p=proportion of computers that use a new operating system.

Given : Confidence level = 95%

i.e. z* = 1.96  [by z-table]

Margin of error : E = 3% =0.03

a. If p is unknown , then we assume p=0.5

Then, n=(0.5)(1-0.5)(\dfrac{1.96}{0.03})^2=1067.11111\approx1068

i.e. n= 1068

b. p=0.96

Then, n=(0.96)(1-0.96)(\dfrac{1.96}{0.03})^2=163.908266667\approx164

i.e. n= 164.

6 0
3 years ago
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