5272道题目5525 条题源记录 · 相同内容已合并
一元一次方程与代数求值挑战
The equation \( h=\frac{9\left(v-273.15\right)}{5}+32 \) gives the corresponding temperature h, in degrees Fahrenheit, of any substance that has a temperature of v kelvins, where \( v>0 \) . If a substance has a temperature of 809.33 degrees Fahrenheit, what is the corresponding temperature, in kelvins, of this substance?
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一元一次方程与代数求值进阶
Which expression is equivalent to \( 4yz^3+5yz+3yz^3 \) ?
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一元一次方程与代数求值进阶
If \( \frac{x}{y}=76 \) and \( \frac{cx}{4y}=76 \), what is the value of c?
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一元一次方程与代数求值进阶
\( f=\frac{\left(10x\right)^2}{7g} \)
The given equation relates the positive numbers \( f \), \( x \) , and \( g \) . Which equation correctly expresses \( x \) in terms of \( f \) and \( g \)?
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一元一次方程与代数求值进阶
If \( 7+x=4 \) , what is the value of \( 42+6x \) ?
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一元一次方程与代数求值进阶
A batch of smoothies consists of 4 cups of milk and 2 bananas and has 1,228 milligrams (mg) of calcium. There is 304 mg of calcium in 1 cup of milk. How much calcium, in mg, is in 1 banana?
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一元一次方程与代数求值进阶
\( b^2+6c=7d \)
The given equation relates the real numbers b, c, and d, where \( d>\frac{6}{7}c \) . Which equation correctly expresses b in terms of c and d?
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一元一次方程与代数求值进阶
If \( 3\left(7x\right)=12 \) , what is the value of \( 7x \) ?
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一元一次方程与代数求值进阶
A piece of a metal alloy called delta metal has a total mass of 200.0 grams. The equation \( c+z+3.6=200.0 \) relates the mass of copper c, in grams, and the mass of zinc z, in grams, in this piece of metal. If this piece of metal contains 110.0 grams of copper, how many grams of zinc does it contain?
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一元一次方程与代数求值进阶
If \( 6+x=3 \) , what is the value of \( 42+7x \)?
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一元一次方程与代数求值进阶
If \( \frac{x}{y}=87 \) and \( \frac{cx}{3y}=87 \) , what is the value of c?
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一元一次方程与代数求值挑战
If \( 4x+7=15 \), what is the value of \( 8x−3 \) ?
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