01/14/23

On a nationwide math test, the mean was 72 and the standard deviation was 10. If Roberto scored 75, what was his z-score? Round your answer to the nearest hundredth.
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01/14/23

Math Alegbra 2 Help Please
A rectangular crate of bottles holds 72 bottles. The rows across the width of the crate hold 1 bottle less than the rows across the length of the crate. Write an equation where b is the number of... more
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01/16/23

math help i dont know what I am doing
Evaluate the expression (1−4i)(−2−1i)(1-4i)(-2-1i) and write the result in the form a+bia+bi.The real number aa equals   The real number bb equals   
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01/16/23

Math Questioin Regarding a Clock
Question 1: An analog clock has a diameter of 10 inches, and the reading on the clock is 8:00. Find the following: Part 1: The exact measure of the smaller central angle between the hands in... more
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01/17/23

Math problem, calculating weekly gross pay
Last week Sonia worked 35 hours. What was Sonia's weekly gross salaryif her total sales were $2040?
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01/18/23

Math - (mL) Word Problem
A box of pancake mix suggests using 250 mL of milk and 325 mL of pancake mix. Rita has only225 mL of pancake mix left in the box. Approximately how much milk should she use? Round tothe nearest... more
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01/18/23

Math - scale factor & height - word problem
In a picture, Arthur's height is 4.5 cm and Joseph's height is 4.8 cm. Joseph's actual height is180 cm. a) Determine the scale factor.b) Determine Arthur's actual.
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01/18/23

Math - Negative Value
Explain why 40% off a $70 shirt can be expressed using a negative value.
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01/18/23

Math - Algebraic Expression
Translate each of the following phrases into an algebraic expression. Use the variable * to represent each unknown.a) quadruple a numberb) eight less than double a numberc) nine more than a number... more
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01/18/23

Math - Money Word Problem
Samantha, Maria, and Erica are three friends who each have part-time jobs. Last week, Samanthaearned twice as much money as Erica, while Maria earned $25 more than Samantha. The total earnings of... more
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01/18/23

Math - Algebraic Expression
Translate each of the following phrases into an algebraic expression. Use the variable x to represent each unknown.a) quadruple a numberb) eight less than double a numberc) nine more than a number... more
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01/18/23

Math - Represent a Proportional Relationship
State and justify whether each of the following represent a proportional relationship.a) y =- 3x2b) chart    x     y    0     0    4    -2.5    8     -5    12    -7.5    16    -10
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01/18/23

Given the following exponential function, identify whether the change represents growth or decay, and determine the percentage rate of increase or decrease. � = 200 ( 0.98 ) � y=200(0.98) x
delta math 11 grade
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01/18/23

Math review 2023
Noah and Andre are 15 miles apart. If Noah rides his bike at a constant 4 mph and Andre rides at 2 mph How long does it take Noah and Andre to meet?
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01/18/23

Given the following exponential function, identify whether the change represents growth or decay, and determine the percentage rate of increase or decrease. y=130(0.32)^x
delta math 11 grade
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01/18/23

Math - Word Problem
The owner of a small business is having brochures printed. The design cost is $1500 and printingcosts $0.08 per brochure.a) Identify the fixed cost.b) Identify the variable cost.c) Write an... more
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01/18/23

7800 dollars is placed in an account with an annual interest rate of 6.5%. How much will be in the account after 29 years, to the nearest cent?
delta math 11 grade
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01/18/23

I need help with math
Four times the sum of a number and two increased by three is at least twenty-seven.
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01/18/23

Math Question...
Sonya​, who is paid​ time-and-a-half for hours worked in excess of 40​ hours, had gross weekly wages of $783 for 52 hours worked. What is her regular hourly​ rate?
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01/18/23

math question...
Going into the final​ exam, which will count as two​ tests, Isabella has test scores of 75, 82, 70, 61, and 96.  What score does Isabella need on the final in order to have an average score of​ 80?
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01/19/23

math question please help
An eastbound train and a westbound train meet each other on parallel tracks heading in opposite directions. The eastbound train travels 12 miles per hour faster than the westbound train. After 2... more
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01/19/23

math please help
A company produces very unusual CD's for which the variable cost is $ 12 per CD and the fixed costs are $ 45000. They will sell the CD's for $ 88 each. Let x be the number of CD's produced.Write... more
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01/19/23

Spanish Help! Answering some questions. 3.1
Hi, I need help answering these questions below! The first 4 would need to be answered in Spanish; I have given some guidelines to my answers using bulleted points below each question! Nombra unos... more
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01/20/23

eighth grade math
On a certain hot​ summer's day, 312 people used the public swimming pool. The daily prices are $1.50 for children and $2.25 for adults. The receipts for admission totaled $669.75. How many children... more
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01/22/23

how to solve this math problem
A farmer recently sold a large plot of land. The sale decreased his total acreage by 12​%. Let v be the original acreage. Find two equivalent expressions that will give the new acreage. Use pencil... more
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